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Home Q & A Board Science-Related Homework Help Mathematics
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An official from the securities commission estimates that 75 of all online bankers have profited ...
An official from the securities commission estimates that 75 of all online bankers have profited ...
An official from the securities commission estimates that 75 of all online bankers have profited from the use of insider information. Assume that 15 online bankers are selected at random from the commission's registry. Find the probability that at mo
KAtlold   23   2 Replies
6 years ago
If X and Y are ____________________, the variance of their sum is equal to the sum of their ...
If X and Y are ____________________, the variance of their sum is equal to the sum of their ...
If X and Y are ____________________, the variance of their sum is equal to the sum of their variances.
 Fill in the blank(s) with correct word
Nalu   23   1 Reply
6 years ago
If X and Y are random variables with E(X) = 6 and E(Y) = 9, then E(2X + 3Y) is:
If X and Y are random variables with E(X) = 6 and E(Y) = 9, then E(2X + 3Y) is:
If X and Y are random variables with E(X) = 6 and E(Y) = 9, then E(2X + 3Y) is:
 a. 39
  b. 15
  c. 27
  d. 12
alexisblack   23   1 Reply
6 years ago
When A and B are mutually exclusive, P(A or B) can be found by adding P(A) and P(B). Indicate ...
When A and B are mutually exclusive, P(A or B) can be found by adding P(A) and P(B). Indicate ...
When A and B are mutually exclusive, P(A or B) can be found by adding P(A) and P(B).
  Indicate whether the statement is true or false
Theleeman   23   1 Reply
6 years ago
Given that Z is a standard normal random variable, the area to the left of a value z is expressed as ...
Given that Z is a standard normal random variable, the area to the left of a value z is expressed as ...
Given that Z is a standard normal random variable, the area to the left of a value z is expressed as
 a. P(Z >= z)
  b. P(Z
everlyn85   23   1 Reply
6 years ago
The conditional probability of event B given event A is denoted by P(AB). Indicate whether the ...
The conditional probability of event B given event A is denoted by P(AB). Indicate whether the ...
The conditional probability of event B given event A is denoted by P(AB).
  Indicate whether the statement is true or false
KAtlold   23   1 Reply
6 years ago
When responses are not obtained from some members of the sample, bias is introduced. Indicate ...
When responses are not obtained from some members of the sample, bias is introduced. Indicate ...
When responses are not obtained from some members of the sample, bias is introduced.
  Indicate whether the statement is true or false
RENCEE72   23   1 Reply
6 years ago
In a self-administered survey, the individuals in the sample are typically contacted by ...
In a self-administered survey, the individuals in the sample are typically contacted by ...
In a self-administered survey, the individuals in the sample are typically contacted by ____________________.
 Fill in the blank(s) with correct word
k123p   23   1 Reply
6 years ago
An approach to quality improvement that involves studying, and attempting to emulate, the strategies ...
An approach to quality improvement that involves studying, and attempting to emulate, the strategies ...
An approach to quality improvement that involves studying, and attempting to emulate, the strategies and practices of organizations already known to generate world-class products and service is known as ____________________.
 Fill in the blank(
sdaggy1   23   1 Reply
6 years ago
When the purpose of sampling is to detect when a process becomes too variable, the chart of choice ...
When the purpose of sampling is to detect when a process becomes too variable, the chart of choice ...
When the purpose of sampling is to detect when a process becomes too variable, the chart of choice will be an R chart.
  Indicate whether the statement is true or false
jldobro   23   1 Reply
6 years ago
A line chart showing the number of crimes in Las Vegas from 2000 to 2005 may exhibit a totally ...
A line chart showing the number of crimes in Las Vegas from 2000 to 2005 may exhibit a totally ...
A line chart showing the number of crimes in Las Vegas from 2000 to 2005 may exhibit a totally different trend than a line chart showing the crime rate in Las Vegas from 2000 to 2005 . (Crime rate is defined as number of crimes per 100,000 people.)
Haydena   23   2 Replies
6 years ago
What is the Employment Cost Index?
What is the Employment Cost Index?
What is the Employment Cost Index?
thisisstupidash   23   1 Reply
6 years ago
According to the chapter, regression models based on time series data are especially susceptible to ...
According to the chapter, regression models based on time series data are especially susceptible to ...
According to the chapter, regression models based on time series data are especially susceptible to autocorrelation. Why?
everlyn85   23   1 Reply
6 years ago
Why do we examine time series?
Why do we examine time series?
Why do we examine time series?
Haydena   23   1 Reply
6 years ago
Which of the following statements is not true regarding the Consumer Price Index (CPI)?
Which of the following statements is not true regarding the Consumer Price Index (CPI)?
Which of the following statements is not true regarding the Consumer Price Index (CPI)?
 a. The CPI describes the change in prices from one period to the next for a fixed market basket of goods and services.
  b. The CPI is used as a measu
kate lynn   23   1 Reply
6 years ago
A practical way to identify multicollinearity is to generate a standard deviation matrix. Indicate ...
A practical way to identify multicollinearity is to generate a standard deviation matrix. Indicate ...
A practical way to identify multicollinearity is to generate a standard deviation matrix.
  Indicate whether the statement is true or false
arichman7730   23   1 Reply
6 years ago
With a push system, it is more likely that defects will pass through to the next process without ...
With a push system, it is more likely that defects will pass through to the next process without ...
With a push system, it is more likely that defects will pass through to the next process without being detected. Choose among the following, the likely consequences of this situation. (1). Increase in rework costs (2). Increase in customer returns (3
Theleeman   23   1 Reply
6 years ago
In response to a major competitor, a local pizza company begins to pay 5 to customers whose home ...
In response to a major competitor, a local pizza company begins to pay 5 to customers whose home ...
In response to a major competitor, a local pizza company begins to pay 5 to customers whose home delivered pizza did not arrive within 30 minutes after the order was placed. Explain why you applied that specific distribution to answer the preceding q
rgasio   23   2 Replies
6 years ago
What is an alternative hypothesis?
What is an alternative hypothesis?
What is an alternative hypothesis?
Nalu   23   1 Reply
6 years ago
A cashier at Carter's cafeteria can total an average of 2.2 trays per minute. The probability that ...
A cashier at Carter's cafeteria can total an average of 2.2 trays per minute. The probability that ...
A cashier at Carter's cafeteria can total an average of 2.2 trays per minute. The probability that the cashier will total exactly four trays in a minute is:
 a. 0.9275.
  b. 0.8918.
  c. 0.1082.
  d. 0.0992.
  e. 0.1169.
lingo   23   1 Reply
6 years ago
What is survey research?
What is survey research?
What is survey research?
gracehiller11   23   1 Reply
6 years ago
Summarize the empirical rule.
Summarize the empirical rule.
Summarize the empirical rule.
SnowQueen   23   1 Reply
6 years ago
Consider the following sample data: 6, 10, 4, 3, 7, 9, 21, and 14 . What is the variance?
Consider the following sample data: 6, 10, 4, 3, 7, 9, 21, and 14 . What is the variance?
Consider the following sample data: 6, 10, 4, 3, 7, 9, 21, and 14 . What is the variance?
jldobro   23   1 Reply
6 years ago
You are interested in beginning a small business enterprise and one aspect of your research is to ...
You are interested in beginning a small business enterprise and one aspect of your research is to ...
You are interested in beginning a small business enterprise and one aspect of your research is to look at the loan record for stockholders of small business corporations. A14-year record of net loans from stockholders of small business corporations (
escoba   23   1 Reply
6 years ago
Which is NOT a step in the Dantzig-Wolfe decomposition algorithm?
Which is NOT a step in the Dantzig-Wolfe decomposition algorithm?
Which is NOT a step in the Dantzig-Wolfe decomposition algorithm?
  a.Assume that a bfs solution for the restricted master is readily available.
  b.Substitute the optimal values of
stroman54   23   1 Reply
6 years ago
The Mann-Whitney U test is the nonparametric analog of the .
The Mann-Whitney U test is the nonparametric analog of the .
The Mann-Whitney U test is the nonparametric analog of the .
 
  a. trel
  b. two-factor between-subjects analysis of variance
  c. tind
  d. one-factor within-subjects analysis of variance
tmontes00   23   2 Replies
6 years ago
A high school newspaper wants to know the preponderance of cheating in the school. To do this it ...
A high school newspaper wants to know the preponderance of cheating in the school. To do this it ...
A high school newspaper wants to know the preponderance of cheating in the school. To do this it randomly surveys 100 students by having them fill out an anonymous survey.
 
  From this, the newspaper states that 40 of the students cheat.
ejohnson3310   23   1 Reply
6 years ago
The probability that the number of correct answers is between 23 and 41 inclusive :
The probability that the number of correct answers is between 23 and 41 inclusive :
The probability that the number of correct answers is between 23 and 41 inclusive
 
  A) The area between 23.5 and 40.5 B) The area between 22.5 and 40.5
  C) The area between 23 and 41 D) The area between 22.5 and 41.5
love2211   23   1 Reply
6 years ago
In the equation Y = +1.5X - 3, the value of Y will be when X = 1.
In the equation Y = +1.5X - 3, the value of Y will be when X = 1.
In the equation Y = +1.5X - 3, the value of Y will be when X = 1.
 
  a. -1.5
  b. +1.5
  c. -3.0
  d. +3.5
infantryman1986   23   1 Reply
6 years ago
If the result of a tind on an experiment is reported as t(28) = 2.633, p < .05, then you know ...
If the result of a tind on an experiment is reported as t(28) = 2.633, p < .05, then you know ...
If the result of a tind on an experiment is reported as t(28) = 2.633, p < .05, then you know that the .
 
  a. critical value of t was 2.633
  b. alpha level was less than .05
  c. total number of subjects was 28
  d. total
Brutusandmoose   23   2 Replies
6 years ago
If SSA = 40.00, SSS = 70.00, and SSA S = 60.00 in a one-factor within-subjects analysis of ...
If SSA = 40.00, SSS = 70.00, and SSA S = 60.00 in a one-factor within-subjects analysis of ...
If SSA = 40.00, SSS = 70.00, and SSA  S = 60.00 in a one-factor within-subjects analysis of variance, then 2 is .
 
  a. .24
  b. .36
  c. .40
  d. .31
ANP2202   23   1 Reply
6 years ago
If the results for a main effect in an analysis of variance for a 2 3 between-subjects design were ...
If the results for a main effect in an analysis of variance for a 2 3 between-subjects design were ...
If the results for a main effect in an analysis of variance for a 2  3 between-subjects design were reported as F(1, 30) = 5.69, p < .05, then you know that there were different treatment conditions and a total of subjects in the experiment.
 
jprust87   23   1 Reply
6 years ago
Listing each possible score value and then placing a tally mark next to each score for each time it ...
Listing each possible score value and then placing a tally mark next to each score for each time it ...
Listing each possible score value and then placing a tally mark next to each score for each time it occurs in a set of scores results in a(n) frequency distribution.
 
  a. ungrouped
  b. grouped
  c. relative
  d. cumulativ
KAtlold   23   1 Reply
6 years ago
A 2 2 between-subjects factorial design with ten scores per cell requires participants.
A 2 2 between-subjects factorial design with ten scores per cell requires participants.
A 2  2 between-subjects factorial design with ten scores per cell requires participants.
 
  a. 10
  b. 20
  c. 40
  d. 80
littlej_dvine   23   1 Reply
6 years ago
Use inductive reasoning to predict the next line in the pattern. Then perform the arithmetic to ...
Use inductive reasoning to predict the next line in the pattern. Then perform the arithmetic to ...
[html]Question 1.Use inductive reasoning to predict the next line in the pattern. Then perform the arithmetic to determine whether your conjecture is correct.

60 - 9 = 51
Hpreet796   23   1 Reply
4 years ago
Use inductive reasoning to predict the next line in the pattern. Then perform the arithmetic to ...
Use inductive reasoning to predict the next line in the pattern. Then perform the arithmetic to ...
[html]Question 1.Use inductive reasoning to predict the next line in the pattern. Then perform the arithmetic to determine whether your conjecture is correct.

4 x 6 = 5 × 7
zar   23   1 Reply
4 years ago
Which reasoning process is shown in the following example?We examine the social security numbers of ...
Which reasoning process is shown in the following example?We examine the social security numbers of ...
[html]Question 1.Solve the problem using inductive reasoning.

Write the next three "triangular" figurate numbers.
meikunn2565   23   1 Reply
4 years ago
X - (1/10) = (9/10)A) (8/9)B) 1 C) (7/10) D) (4/5)
X - (1/10) = (9/10)A) (8/9)B) 1 C) (7/10) D) (4/5)
x - (1/10) = (9/10)
A) (8/9)
B) 1
C) (7/10)
D) (4/5)
stoecki   24   1 Reply
6 years ago
A is 2 4, B is 2 4. (Multiple Choice)
A is 2 4, B is 2 4. (Multiple Choice)
A is 2  4, B is 2  4.
 
  A) AB is 2  2, BA is 4  4. B) AB is 2  4, BA is 4  2.
  C) AB is undefined, BA is undefined. D) AB is 4  2, BA is 2  4.
cillapris   24   2 Replies
6 years ago
If P=, then P12(2) = a.0.56. b.0.44 c.0.6. d.0.4.
If P=, then P12(2) = a.0.56. b.0.44 c.0.6. d.0.4.
If P=, then P12(2) =
  a.0.56.
  b.0.44
  c.0.6.
  d.0.4.
beaches411   24   1 Reply
6 years ago
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