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Author Question: A researcher has two percentages and wants to know if the percentages are statistically different. ... (Read 93 times)

tashina2013

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Question 1

A researcher can test the null hypothesis that no differences exist between the two group means (or percentages) by using a ________.
◦ confidence interval test
◦ differences test
◦ Chi-square test
◦ Spearman correlation

Question 2

A researcher has two percentages and wants to know if the percentages are statistically different. The researcher calculates the z value and finds that it is 4.21. This means that the two percentages ________.
◦ are the same
◦ are not statistically different
◦ have a 421 percent chance of not being different
◦ are statistically different


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Marked as best answer by tashina2013 on Feb 10, 2022

saly

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tashina2013

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Reply 2 on: Feb 10, 2022
Excellent


debra928

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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