(Solved): Test the following claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-v ...
Test the following claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. A simple random sample of 60 screws supplied by a certain manufacturer is obtained, and the length of each screw is measured. The sample mean is found to be 0.871in. Assume that the standard deviation of all such lengths is 0.014in, and use a 0.01 significance level to test the claim that the screws have a mean length equal to 7/8 in (or 0.875 in), as indicated on the package labels. Do the screw lengths appear to be consistent with the package label? What are the null and alternative hypotheses? A. H0?:?=0.875H1?:??=0.875? C. H0?:??=0.875H1?:?=0.875? B. H0?:?=0.875H1?:?<0.875? D. H0?:?=0.875H1?:?>0.875? What is the value of the test statistic? z= (Round to two decimal places as needed.) H0?. There sufficient evidence to warrant rejection of the claim that the screws have a mean length equal to 0.875 in, as indicated on the package labels.