We want to conduct a hypothests test of the daim that the population.mean score on a...

 

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We want to conduct a hypothests test of the daim that the population.mean score on a nationwide examination in anthropology is different from 473. So, we choose a random. sample of exam scores. The sample has a mean of 487 and a standard.deviation of 76. For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis test on the population mean. Then calculate that statistic Round your answers to two decimal.places (a) The sample has size 18, and it is from a normally distributed population with a known standard deviation of 76. O t is unclear which test statistic to use. 52 (b) The sample has size 10, and it is from a population with a distribution about which we know very httle. Ot is unclear which test statistic to use. We want to conduct a hypothests test of the daim that the population.mean score on a nationwide examination in anthropology is different from 473. So, we choose a random. sample of exam scores. The sample has a mean of 487 and a standard.deviation of 76. For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis test on the population mean. Then calculate that statistic Round your answers to two decimal.places (a) The sample has size 18, and it is from a normally distributed population with a known standard deviation of 76. O t is unclear which test statistic to use. 52 (b) The sample has size 10, and it is from a population with a distribution about which we know very httle. Ot is unclear which test statistic to use.