A) State the null and alternative hypothesis for this testB) determine if this test is left tailed right tailed or two tailedC) should the standard normal Z distribution or students t-distribution be used for this test ? D) determine the critical values for this hypothesis test around the solutions to two decimal places if more than one critical value exist answer the solutions using a comma separated listE) determine the Test statistic round the solution to four decimal placesF) Determine the appropriate decision for this hypothesis test

Question 30 A national internet service provider (ISP) claims that its broadband internet download speed is 75 megabits per second (Mbps) on average. To the contrary, there have recently been widespread reports that consumers are experiencing much slower download speeds from this ISP. A organization ogranization decided to investigate the issue. They took a random sample of 12 internet speeds from around the nation. The observations are given below. 60 66 71 68 76 74 63 75 61 70 76 75 Using o - 0.1, test the hypothesis that the average download speed is 75 Mbps, as advertised by the ISP. Assume that the distribution of all broadband internet download speed measurements from this ISP is approximately normally distributed. Use the critical value method. State the null and alternative hypothesis for this test. Ho: ? v