2 ~ 3 4 V 6 V 7 (=8 10 11 Spam: A researcher reported that 71.8% of all email sent in a recent month was spam. A system manager at a large corporation believes that the percentage at his company may be 71%. He examines a random sample of 500 emails received at an email server, and finds that 377 of the messages are spam. Can you conclude that greater than 71% of emails are spam? Use both a=0.10 and a=0.01 levels of significance and the critical value method with the table. Part 1 of 5 State the appropriate null and alternate hypotheses. HO : P = 0.71 H : p 0.71 This hypothesis test is a right-tailed test. Part 2 of 5 Find the critical values. Round the answers to three decimal places. For a=0.10, the critical value is |1.282 For a=0.01, the critical value is | 2.326 Part: 2 / 5 Part 3 of 5 Compute the test statistic. Do not round intermediate calculations. Round the answer to two decim places. 5 X