two population proportions. H0 : p1−p2 ? 0 H1 : p1−p2 ? 0 b. Calculate the test statistic. z= Round to two decimal places if necessary Enter 0 if normal approximation cannot be used c. Determine the critical value(s) and state the rejection region for the null hypothesis at a=0.01�=0.01. = Round to two decimal places if necessary Enter 0 if normal approximation cannot be used
two population proportions. H0 : p1−p2 ? 0 H1 : p1−p2 ? 0 b. Calculate the test statistic. z= Round to two decimal places if necessary Enter 0 if normal approximation cannot be used c. Determine the critical value(s) and state the rejection region for the null hypothesis at a=0.01�=0.01. = Round to two decimal places if necessary Enter 0 if normal approximation cannot be used
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 10E
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Question
Do you prefer e-textbooks over print textbooks? Responses for random samples of 'young students' and 'mature students' are summarized below.
Young Students | Mature Students | |
---|---|---|
Prefer e-textbook | 119 | 108 |
280 | 200 |
Standard Normal Distribution Table
a. State the hypotheses for testing if a significant difference exists between the two population proportions.
H0 : p1−p2 ? 0
H1 : p1−p2 ? 0
b. Calculate the test statistic.
z=
Round to two decimal places if necessary
Enter 0 if normal approximation cannot be used
c. Determine the critical value(s) and state the rejection region for the null hypothesis at a=0.01�=0.01.
=
Round to two decimal places if necessary
Enter 0 if normal approximation cannot be used
d. Conclude whether to reject the null hypothesis or not based on the test statistic.
Reject
Fail to Reject
Cannot Use Normal Approximation
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