A politician claims that the mean salary for managers in his state is more than the national mean 80 000 Assume the the

Question

A politician claims that the mean salary for managers in his state is more than the national mean 80 000 Assume the the population is normally distributed and the population standard deviation is 9200 The salaries in dollars for a random sample of 30 managers in the state are listed At 0 03 is there enough evidence to support the claim Use technology 77 676 71 220 92 240 77 134 83 958 92 327 OD Ho 80 000 H 80 000 74 863 72 291 78 950 a Identify the null hypothesis and alternative hypothesis OA Ho 280 000 H 80 000 Z b Identify the standardized test statistic 92 973 70 053 96 961 72 673 75 969 77 703 OB Ho 80 000 H 80 000 E Ho 80 000 Ha 80 000 76 249 84 275 86 053 89 501 95 631 70 670 79 330 97 368 96 758 95 357 73 233 72 501 C Ho 80 000 Ha 80 000 F Ho 80 000 Ha 80 000 Round the final answer to two places as needed Round all intermediate values to three places as needed 91 154 78 968 93 241

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