8 According to the manufacturer the normal output voltage

Last updated: 3/2/2023

8 According to the manufacturer the normal output voltage for a particular device is 120 volts 1 point From a sample of 40 devices the mean was found to be 123 59 volts and the standard deviation was 0 31 Jolt The test statistic was then found to be 73 242 Use the test statistic and a 0 05 significance level to test the claim that the Sample is from a population with a mean equal to 120 volts State the initial and final conclusion Reject the null hypothesis there is not sufficient evidence to warrant a rejection of the claim that the mean voltage is 120 volts Reject the null hypothesis there is sufficient evidence to warrant a rejection of the claim that the mean voltage is 120 volts Fail to reject the null hypothesis there is sufficient evidence to warrant a rejection of the claim that the mean voltage is greater than 120 volts Fail to reject the null hypothesis there is not sufficient evidence to warrant a rejection of the claim that the mean voltage is greater than 120 volts 9 A simple random sample of 10 pages from a dictionary is obtained and the number of defined words on each page is recorded The sample mean is found to be 53 5 definitions per page and put voltage is 120 volts Data Set to have Han 1 point