Consider the following hypothesis test: H 0: 20 H a: < 20 A sample of 50 provided a sample mean of 19.4. The population standard deviation is 2. a. Compute the value of the test statistic (to 2 decimals). If your answer is negative, use minus “-” sign b. What is the p-value (to 3 decimals)? c. Using = .05, can it be concluded that the population mean is less than 20?SelectYesNoItem 3 d. Using = .05, what is the critical value for the test statistic? If your answer is negative, use minus “-” sign e. State the rejection rule: Reject H 0 if z is Selectgreater than or equal togreater thanless than or equal toless thanequal tonot equal toItem 5 the critical value. f. Using = .05, can it be concluded that the population mean is less than 20?SelectYesNoItem 6
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Consider the following hypothesis test: H 0: 20 H a: < 20 A sample of 50 provided a sample mean of 19.4. The population standard deviation is 2. a. Compute the value of the test statistic (to 2 decimals). If your answer is negative, use minus “-” sign b. What is the p-value (to 3 decimals)? c. Using = .05, can it be concluded that the population mean is less than 20? d. Using = .05, what is the critical value for the test statistic? If your answer is negative, use minus “-” sign e. State the rejection rule: Reject H 0 if z is Selectgreater than or equal togreater thanless than or equal toless thanequal tonot equal toItem 5 the critical value. f. Using = .05, can it be concluded that the population mean is less than 20? |
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