Returning to a previously described scenario: Suppose that a scientist is interested in determining if the proportion of females who prefer Diet Coke to regular Coke is different from the proportion of males who prefer Diet Coke to regular Coke. They randomly sample 219 people and ask them if they prefer Diet Coke to regular Coke, and also record if they are a male or a female. Their study results in the following table:   males females total sample size 112 107 219 number of successes 56 73 129 sample proportion 0.50 0.68 0.59   Fill in the blanks with the correct values for the z-statistic for the hypothesis test. (Note: the first blank in the numerator is the observed value and the second number in the numerator is the hypothesized value.) Report the first value in the numerator to two decimal places. Round the value in the denominator to four decimal places. z = ( ______   - ______   )________  /________

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter5: A Survey Of Other Common Functions
Section5.6: Higher-degree Polynomials And Rational Functions
Problem 5E: Population Genetics In the study of population genetics, an important measure of inbreeding is the...
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Returning to a previously described scenario: Suppose that a scientist is interested in determining if the proportion of females who prefer Diet Coke to regular Coke is different from the proportion of males who prefer Diet Coke to regular Coke. They randomly sample 219 people and ask them if they prefer Diet Coke to regular Coke, and also record if they are a male or a female. Their study results in the following table:

 

males

females

total

sample size

112

107

219

number of successes

56

73

129

sample proportion

0.50

0.68

0.59

 

Fill in the blanks with the correct values for the z-statistic for the hypothesis test. (Note: the first blank in the numerator is the observed value and the second number in the numerator is the hypothesized value.) Report the first value in the numerator to two decimal places. Round the value in the denominator to four decimal places.

z = ( ______   - ______   )________  /________

 

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