A national internet service provider (ISP) claims that its broadband internet download speed is 300 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 16 internet speeds from around the nation. The observations are given below. 251 263 291 299 263 302 287 265 273 330 269 284 323 310 268 308 Using a 0.005, test the hypothesis that the average download speed is 300 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 H: Determine if this test is left-tailed, right-tailed, or two-tailed. right-tailed two-tailed left-tailed Should the standard normal (2) distribution or Student's (t) distribution be used for this test? The Student's t distribution should be used The standard normal (2) distribution should be used Determine the critical value(s) for this hypothesis test. Round the solution(s) to four decimal places. If more than one critical value exists, enter the solutions using a comma-separated list. Determine the test statistic. Round the solution to four decimal places. Determine the appropriate conclusion for this hypothesis test. The sample data do not provide sufficient evidence to reject the null hypothesis that the mean download speed from this ISP is 300 Mbps and thus we conclude that it is likely the average download speed from this ISP 300 Mbps, as advertised. The sample data do not provide sufficient evidence to reject the alternative hypothesis that the mean download speed from this ISP is less than 300 and thus we conclude that the mean download speed from this ISP is likely less than 300 Mbps on average. The sample data provide sufficient evidence to reject the null hypothesis that the mean download speed from this ISP is 300 Mbps and thus we conclude that it is likely the true average download speed from this ISP less than advertised. The sample data provide sufficient evidence to reject the alternative hypothesis that the mean download speed from this ISP is less than 300 and thus we conclude that the mean download speed from this ISP is likely 300 Mbps on average.