# Assume that the U S Mint manufactures dollar coins so that

Last updated: 2/1/2024

Assume that the U S Mint manufactures dollar coins so that the standard deviation is 0 0390 g The accompanying list contains weights grams of dollar coins manufactured with a new process designed to decrease the standard deviation so that it is less than 0 0390 g This sample has these summary statistics n 16 x 8 066 g s 0 02 g A 0 05 significance level is used to test the claim that the sample is from a population with a standard deviation less than 0 0390 g The null and alternative hypotheses are Ho o 0 0390 g and H o 0 0390 g For this sample data we get a P value of 0 0099 when testing the claim that o 0 0390 g Complete parts a through c a What should we conclude about the null hypothesis 4 O A Accept the null hypothesis OB Fail to reject the null hypothesis OC Fail to accept the null hypothesis OD Reject the null hypothesis