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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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cody.chaffee cody.chaffee
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7 years ago
A chi-square test of association in a contingency table with r rows and c columns has a chi-square distribution with rc-1 degrees of freedom.
 
  Indicate whether the statement is true or false

Q. 2

Find the standard deviation.
 
  What will be an ideal response?

Q. 3

What are the most appropriate null and alternative hypotheses regarding the population correlation?
 
  A) H0 : p = 0 and H1 : p  0
  B) H0 : p = 0 and H1 : p < 0
  C) H0 : p = 0 and H1 : p > 0
  D) H0 : p = 0 and H1 : p < 1

Q. 4

What is the probability that the stock has a return of at least 8?
 
  What will be an ideal response?

Q. 5

Suppose that 24 of all sales in a grocery store are for amounts greater than 100.
 
  In a random sample of 50 invoices, what is the probability that more than ten of the invoices are for over 100? Use the normal approximation for the binomial distribution.

Q. 6

Determine the error for the forecast that corresponds to the year 1899.
 
  A) 0.50
  B) -3.69
  C) -5.50
  D) 10.16
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bbbbkiugoufiufgbbbbkiugoufiufg
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7 years ago
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cody.chaffee Author
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#2
7 years ago
Makes tons more sense now! Vote with confidence people, these are all correct
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#3
7 years ago
Slight Smile Feeling super proud now
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