Consider the following hypothesis test: Но: и > 20 < 20 На: и 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 -2.12 b. What is the p-value (to 3 decimals)? 0.017 c. Using a = .05, can it be concluded that the population mean is less than 20? Yes d. Using a = .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 o if z is Select the critical value. f. Using a .05, can it be concluded that the population mean is less than 20? Select

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