Choose the correct answer.

Problem 1

Perform the following test of hypothesis. Ho: u = 285, H1: M 0.58, a random sample of size 1143 produced a sample proportion of 0.5985. The test is to be made at the 2.5% signicance level. Should you reject or fail to reject the null hypothesis in this test? J fail to reject reject In a hypothesis test with hypotheses Ho : p .39, a random sample of size 483 produced a sample proportion of 0.4250. The test is to be made at the 10% significance level. Should you reject or fail to reject the null hypothesis in this test? fail to reject reject eTextbook and MediaCustomers often complain about long waiting times at restaurants before the food is served. A restaurant claims that it serves food to its customers, on average, within 15.4 minutes after the order is placed. A local newspaper journalist wanted to check if the restaurant's claim is true. A sample of 33 customers showed that the mean time taken to serve food to them was 16 minutes with a standard deviation of 2.4 minutes. Using the sample mean, the journalist says that the restaurant's claim is false. Do you think the journalist's conclusion is fair to the restaurant? Use a 5% significance level to answer this question. The journalist's claim is V fair eTextbook and Me unfair