Perform a hypothesis test to determine the validity of a claim.  From a sample of 30 grandparents, the average number of grandchildren they have is 5. The mean is 4.733, the level of confidence is 0.05, this is a two-tailed test. Standard deviation: 2.033  Variance:  4.133 State the Hypothesis and identify the claim. H0: Claim or not a claim H1: Claim or not a claim Find the critical value(s) Round the answer to at least two decimal places. Compute the test value.  z=  Make the decision. Reject on not to reject the null hypothesis Summarize the results.  There is or is not enough evidence to support the claim.

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