# Choo Choo Paper Company makes various types of paper

Last updated: 11/28/2023

Choo Choo Paper Company makes various types of paper products One of their products is a 30 mils thick paper In order to ensure that the thickness of the paper meets the 30 mils random cuts of paper are selected and the thickness of each cut is measured A sample of 256 cuts had a mean thickness of 30 4 mils with a standard deviation of 5 mils a Compute the standard error of the mean b At the 0 05 level of significance using the critical value approach test to see if the mean thickness is significantly more than 30 mils State the null and alternative hypotheses in mils Enter for as needed Ho Ha C Find the value of the test statistic State the critical value s for this test Round your answer s to three decimal places If the test is one tailed enter NONE for the unused tail test statistic s test statistic 2 State your conclusion O Do not reject Ho There is insufficient evidence to conclude that the mean thickness is significantly more than 30 mils O Reject Ho There is insufficient evidence to conclude that the mean thickness is significantly more than 30 mils O Reject Ho There is sufficient evidence to conclude that the mean thickness is significantly more than 30 mils O Do not reject Ho There is sufficient evidence to conclude that the mean thickness is significantly more than 30 mils c Show that the p value approach results in the same conclusion as that of part b Find the p value Round your answer to four decimal places p value State your conclusion O Do not reject Ho There is insufficient evidence to conclude that the mean thickness is significantly more than 30 mils O Reject Ho There is insufficient evidence to conclude that the mean thickness is significantly more than 30 mils oro is sufficient evidence to conclude that the mean thickness is significantly more than 30 mils