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A distributor claims that the average sale is 120 per day. You randomly select 50 days and determine the number of sales each day.

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A distributor claims that the average sale is 120 per day. You randomly select 50 days and determine the number of sales each day. The sample mean is 114 sales with a standard deviation of 6 sales. Test the claim at a=0.1. a) State the hypotheses, and identify the claim. b) Determine whether the test is left-tailed, right-tailed. off two-tailed c) Find the standardized test statistic z. d) Find the P-value. e) Decide whether to reject the null hypothesis or not. f) Interpret the decision in the context of the claim.

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