Statistics and Probability

Discuss the difference between constant seasonal variation and increasing seasonal variation.

Discuss the difference between constant seasonal variation and increasing seasonal variation.

1.Discuss the difference between constant seasonal variation and increasing seasonal variation.
 
     2.  Provide an example of a time series regression analysis which exhibits constant seasonal variation. Compare this to an

Catracho   45   2 Replies

bio_man

THE FRESH DETERGENT CASE Fresh Enterprise Industries produces Fresh, a brand of liquid laundry dete

THE FRESH DETERGENT CASE Fresh Enterprise Industries produces Fresh, a brand of liquid laundry dete

THE FRESH DETERGENT CASE  Fresh
Enterprise Industries produces Fresh, a brand of liquid laundry detergent. In order to study the relationship between price and demand for the large bottle of Fresh, the company has gathered data concerning d

Catracho   37   1 Reply

bio_man

2. Provide an example ( other than the textbook’s) of how we would use the simple linear ...

2. Provide an example ( other than the textbook’s) of how we would use the simple linear ...

2. Provide an example ( other than the textbook’s)  of how we would use the simple linear regression model or the multiple regression model to predict an outcome in a real life setting. What would be appropriate independent variable(s),  an

Catracho   38   1 Reply

bio_man

1. What is the least squares regression line, and what are the least squares point estimates? Why

1. What is the least squares regression line, and what are the least squares point estimates? Why

1.  What is the least squares regression line, and what are the least squares point estimates?   Why is it dangerous to extrapolate outside the experimental region?

Catracho   37   1 Reply

bio_man

Assume that we have selected two independent random samples from populations having proportions p1 a

Assume that we have selected two independent random samples from populations having proportions p1 a

Assume that we have selected two independent random samples from populations having proportions p1 and p2 and that  1 = 800/1000 = 0.8 and  2 = 950/1000 = 0.95. Test H0: p1 – p2 > –.12 versus Ha: p1 – p2 < –.12 by using a p-value and

Catracho   90   5 Replies

bio_man

Suppose we have taken independent, random samples of sizes n1 = 7 and n2 = 7 from two normally distr

Suppose we have taken independent, random samples of sizes n1 = 7 and n2 = 7 from two normally distr

the information is on the google document.

Catracho   42   2 Replies

duddy

Why is a paired difference experiment sometimes more informative than an independent samples experim

Why is a paired difference experiment sometimes more informative than an independent samples experim

Why is a paired difference experiment sometimes more informative than an independent samples experiment ? Give an example of a situation in which a paired difference experiment might be advantageous.

Catracho   43   1 Reply

bio_man

Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA formulas.

Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA formulas.

Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA formulas.

Catracho   35   1 Reply

habiba

Explain why we conduct pairwise comparisons of treatment means.

Explain why we conduct pairwise comparisons of treatment means.

Explain why we conduct pairwise comparisons of treatment means.

Catracho   38   2 Replies

habiba

How do you calculate probability using permutations?

How do you calculate probability using permutations?

My homework question is:

Six jokes about books by Groucho Marx, George Carlin, Steven Wright, Greg Ray, Jerry Seinfeld, and Phyllis Diller are each written on one of six cards. The cards are placed in a hat and drawn one at a time.

qwer34   26   1 Reply

bio_man

I need help graphing quadratic equations with absolute values

I need help graphing quadratic equations with absolute values

Graph each of the following functions.

a)   \(y=|x^2−x−6|\)

b)   \(y=|−2x^2+5x−3|\)

c)   \(y=|x^3−x|\)

Thanks

anhsu   30   1 Reply

5 / 5

bio_man

Use Table 11.2 to find the F.05 point for each of the following: (Round your answers to 2 decimal pl

Use Table 11.2 to find the F.05 point for each of the following: (Round your answers to 2 decimal pl

Use Table 11.2 to find the F.05 point for each of the following: (Round your answers to 2 decimal places.)

 
(a)
 df1 = 3 numerator degrees of freedom and df2 = 14 denominator degrees of freedom.
 
 
 
F.05 __

Catracho   34   1 Reply

Jodias

Suppose a sample of 49 paired differences that have been randomly selected from a normally distribut

Suppose a sample of 49 paired differences that have been randomly selected from a normally distribut

Suppose a sample of 49 paired differences that have been randomly selected from a normally distributed
population of paired differences yields a sample mean of  and a sample standard deviation of  sd = 7.

(a)
Calculate

Catracho   34   1 Reply

bio_man

Suppose we have taken independent, random samples of sizes n1 = 7 and n2 = 7 from two normally distr

Suppose we have taken independent, random samples of sizes n1 = 7 and n2 = 7 from two normally distr

Suppose we have taken independent, random samples of sizes n1 = 7 and n2 = 7 from two normally distributed populations having means µ1 and µ2, and suppose we obtain  = 240,  = 210, s1 = 5, s2 = 6.

Assuming equal variances calcula

Catracho   45   1 Reply

bio_man

Suppose we have taken independent, random samples of sizes n1 = 8 and n2 = 8 from two normally distr

Suppose we have taken independent, random samples of sizes n1 = 8 and n2 = 8 from two normally distr

Suppose we have taken independent, random samples of sizes n1 = 8 and n2 = 8 from two normally distributed populations having means µ1 and µ2, and suppose we obtain , (something goes  here but I cant type it) , s1 = 5, s2 = 4. Use critical value

Catracho   126   N/A

Catracho

A Company manufactures women's hosiery. The company sells slightly irregular panty hose through a ...

A Company manufactures women's hosiery. The company sells slightly irregular panty hose through a ...

A Company manufactures women's hosiery. The company sells slightly irregular panty hose through a mail-order catalog service. If the company produces 300,000 pairs of hose per day and the probability of a pair not being irregular is 0.92, the average

KAtlold   35   2 Replies

dinski

Vegetables from the summer harvest are currently being processed at Skone and Conners Foods, Inc The ...

Vegetables from the summer harvest are currently being processed at Skone and Conners Foods, Inc The ...

Vegetables from the summer harvest are currently being processed at Skone and Conners Foods, Inc The manager has found a case of cans that has not been properly sealed.
 
  There are three lines that processed cans of this type, and the ma

roymiana   33   4 Replies

5 / 5

晏瑄 張

Tamara Muldoon received an invoice dated October 25th with terms of 2/10, n/30 EOM. If Tamara wishes ...

Tamara Muldoon received an invoice dated October 25th with terms of 2/10, n/30 EOM. If Tamara wishes ...

Tamara Muldoon received an invoice dated October 25th with terms of 2/10, n/30 EOM. If Tamara wishes to pay the bill on the last day of the discount period, what date would she pay the invoice?
 A) December 10
  B) November 30
  C) N

crchicota   109   3 Replies

joejoe

Screws and Bolts Outlet buys a shipment of screws with a list price of 2,400. If the supplier ...

Screws and Bolts Outlet buys a shipment of screws with a list price of 2,400. If the supplier ...

Screws and Bolts Outlet buys a shipment of screws with a list price of 2,400. If the supplier extends trade discounts of 20/25/10, what is the trade discount amount?
 A) 480
  B) 1,920
  C) 1,104
  D) 1,440

[color=cad

zfuller1   15   4 Replies

goldnugget

The number of four-period centered moving averages of a time series with 20 time periods is:

The number of four-period centered moving averages of a time series with 20 time periods is:

The number of four-period centered moving averages of a time series with 20 time periods is:
 a. 16 c. 24
  b. 20 d. 28

Q. 2

If you are testing to see if a weight loss program is working, and y

I mr ghost x   24   3 Replies

Anna Veglahn

Lenny wishes to make a deposit. He has these bills: 12 ones, 3 fives, 2 tens, and 3 twenties. He has ...

Lenny wishes to make a deposit. He has these bills: 12 ones, 3 fives, 2 tens, and 3 twenties. He has ...

Lenny wishes to make a deposit. He has these bills: 12 ones, 3 fives, 2 tens, and 3 twenties. He has 5 nickels, 17 dimes, and 18 quarters. Lenny has checks for 29.25 and 34.75. Lenny wants to receive 20 in cash. What should he enter on the TOTAL line

Calypso1992   53   4 Replies

ausdog

Statistics help

Statistics help

An organizational psychologist conducted a study to see whether upgrading a companyʹs older computer system to newly released, faster machines would cause an increase in productivity from the current average of 120 units with a standard deviation of

sonmarie72   46   2 Replies

bluebell

6. An organizational psychologist conducted a study to see whether upgrading a companyʹs older ...

6. An organizational psychologist conducted a study to see whether upgrading a companyʹs older ...

none

yhernandez   24   1 Reply

bio_man

A study designed to compare two ethnic groups on a measure of a particular personality trait used a

A study designed to compare two ethnic groups on a measure of a particular personality trait used a

none

yhernandez   36   N/A

yhernandez

If P(A) = 0.62, P(B) = 0.56, and P(A B) = 0.70, then P(B :

If P(A) = 0.62, P(B) = 0.56, and P(A B) = 0.70, then P(B :

If P(A) = 0.62, P(B) = 0.56, and P(A  B) = 0.70, then P(B  A) =
 a. .4800.
  b. .7742.
  c. .9032.
  d. .3472.

SnowQueen   40   2 Replies

Cindy Whitener

6. A researcher hypothesizes that individuals who listen to classical music will score differently f

6. A researcher hypothesizes that individuals who listen to classical music will score differently f

a. Is this a one- or two-tailed test?

badaul   35   1 Reply

bio_man

Jackson even-numbered Chapter exercises (pp. 220-221; 273-275)

Jackson even-numbered Chapter exercises (pp. 220-221; 273-275)

6. A researcher hypothesizes that individuals who
listen to classical music will score differently
from the general population on a test of spatial
ability. On a standardized test of spatial ability,
= 58. A random sample of 14 in

badaul   25   2 Replies

duddy

Calculating SS total using actual scores and predicted scores

Calculating SS total using actual scores and predicted scores

An educational psychologist wants to predict how well students will do on a particular multiple-choice test based on a measure of their ability to follow instructions. Their actual scores are 3, 7, and 11, and their respective predicted scores are 5,

Kim Rogers   31   1 Reply

bio_man

Continuous data is often the result of measuring observations rather than counting them. (True or false?)

Continuous data is often the result of measuring observations rather than counting them. (True or false?)

Continuous data is often the result of measuring observations rather than counting them.
 
  Indicate whether the statement is true or false

Q. 2

A restaurant manager randomly selects tables at

CarlosSerr213   23   3 Replies

brittanyxleee

The sum of the relative frequencies for the relative frequency distribution should be equal to or ...

The sum of the relative frequencies for the relative frequency distribution should be equal to or ...

The sum of the relative frequencies for the relative frequency distribution should be equal to or very close to 1.0 due to rounding.
 
  Indicate whether the statement is true or false

Q. 2

To

husan   23   3 Replies

stowns

The goal of constructing a frequency distribution is to identify a useful pattern in the data and ...

The goal of constructing a frequency distribution is to identify a useful pattern in the data and ...

The goal of constructing a frequency distribution is to identify a useful pattern in the data and often there is more than one acceptable way to accomplish this with grouped quantitative data.
 
  Indicate whether the statement is true or

Keea   14   3 Replies

Madisabella

When constructing a frequency distribution with grouped qualitative data, occasionally you will end ...

When constructing a frequency distribution with grouped qualitative data, occasionally you will end ...

When constructing a frequency distribution with grouped qualitative data, occasionally you will end up with k + 1 or k  1 classes to cover the entire data set.
 
  Indicate whether the statement is true or false

Thale2017   10   2 Replies

Thale2017

Equal-size classes refer to classes for a frequency distribution using grouped quantitative data ...

Equal-size classes refer to classes for a frequency distribution using grouped quantitative data ...

Equal-size classes refer to classes for a frequency distribution using grouped quantitative data that do not overlap.
 
  Indicate whether the statement is true or false

Q. 2

A respondent to a

Tasha p   22   3 Replies

kjatala

Histograms displaying continuous data have gaps between their bars. (True or false?)

Histograms displaying continuous data have gaps between their bars. (True or false?)

Histograms displaying continuous data have gaps between their bars.
 
  Indicate whether the statement is true or false

Q. 2

When you rely on the mean to summarize many data values, you lose im

Pdigker   19   3 Replies

hkleklsrj

One disadvantage of using the median is that it can be heavily influenced by outliers. (True or false?)

One disadvantage of using the median is that it can be heavily influenced by outliers. (True or false?)

One disadvantage of using the median is that it can be heavily influenced by outliers.
 
  Indicate whether the statement is true or false

Q. 2

Histograms displaying discrete data usually have

thehappymedic   9   3 Replies

brand4

When the index point, i, is not a whole number, round i up to the next highest whole number to find ...

When the index point, i, is not a whole number, round i up to the next highest whole number to find ...

When the index point, i, is not a whole number, round i up to the next highest whole number to find the position of the median in a sorted data set.
 
  Indicate whether the statement is true or false

Q. 2[/color

thetick24   9   3 Replies

vieba

The only forms of payment that a particular grocery store accepts are cash, debit card, and credit ...

The only forms of payment that a particular grocery store accepts are cash, debit card, and credit ...

The only forms of payment that a particular grocery store accepts are cash, debit card, and credit card. The sample space cash, credit card is not collectively exhaustive in this example.
 
  Indicate whether the statement is true or false

roni6298   23   3 Replies

Jganz

The probability of the union of two events occurring can never be more than the probability of the ...

The probability of the union of two events occurring can never be more than the probability of the ...

The probability of the union of two events occurring can never be more than the probability of the intersection of two events occurring.
 
  Indicate whether the statement is true or false

Q. 2
[br

collinfluegge   21   3 Replies

Autters98

The z-score has no units even though the original values will normally be expressed in units such as ...

The z-score has no units even though the original values will normally be expressed in units such as ...

The z-score has no units even though the original values will normally be expressed in units such as dollars, years, pounds, or calories.
 
  Indicate whether the statement is true or false

Q. 2
[b

Rye   9   2 Replies

Rye

A conditional probability is also known as a posterior probability, which is a revision of the prior ...

A conditional probability is also known as a posterior probability, which is a revision of the prior ...

A conditional probability is also known as a posterior probability, which is a revision of the prior probability using additional information.
 
  Indicate whether the statement is true or false

Q. 2[

cloudddddd   7   2 Replies

cloudddddd