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Posted: **Wed May 11, 2022 5:08 pm**

: A Sample Of 48 Observations Is Selected From A Normal Population The Sample Mean Is 57 And The Population Standard Dev 1 (30.07 KiB) Viewed 23 times

: A Sample Of 48 Observations Is Selected From A Normal Population The Sample Mean Is 57 And The Population Standard Dev 2 (37.2 KiB) Viewed 23 times

A sample of 48 observations is selected from a normal population. The sample mean is 57, and the population standard deviation is 6. Conduct the following test of hypothesis using the 0.01 significance level. Ho: 58 Hu*58 a. Is this a one or two-talled test? One-tailed test Two-talled test b. What is the decision rule? O Reject Ho if -2.576 <2<2.576 Reject Ho Ifz< -2.576 or 2 > 2.576 c. What is the value of the test statistic? (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.) Value of the test statistio

d. What is your decision regarding Ho? O Reject Ho O Fail to reject Ho e-1. What is the p-value? (Round your z value to 2 decimal places and final answer to 4 decimal places.) p-value e-2. Interpret the p-value? (Round your z value to 2 decimal places and final answer to 2 decimal places.) % chance of finding a z value this large by 'sampling error" when He is true. There is a