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Questions and Answers
What is the null hypothesis for the investigation into the change in weekly production?
What is the null hypothesis for the investigation into the change in weekly production?
- $H_0: ar{x} < 200$
- $H_0: ar{x} eq 200$
- $H_0: ar{x} = 200$ (correct)
- $H_0: ar{x} > 200$
What is the alternative hypothesis for the investigation into the change in weekly production?
What is the alternative hypothesis for the investigation into the change in weekly production?
- $H_1: ar{x} < 200$
- $H_1: ar{x} > 200$
- $H_1: ar{x} = 200$
- $H_1: ar{x} eq 200$ (correct)
What is the test statistic chosen for the investigation?
What is the test statistic chosen for the investigation?
- z (correct)
- t
- Chi-square
- F
What is the probability of committing a type I error at a significance level of .01?
What is the probability of committing a type I error at a significance level of .01?
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What is the null hypothesis for the assessment of the trend reduction in student failures?
What is the null hypothesis for the assessment of the trend reduction in student failures?
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