We want to conduct a hypothesis test of the claim that the population mean score on a nationwide examination in anthropology is different from 470. So, we choose a random sample of exam scores. The sample has a mean of 487 and a standard deviation of 80. For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis on the population mean.then calculate that statistic. Round to 2 decimal places. A. The sample has size 11 and or is from a normally distributed population with a known standard deviation of 76. Answers- z= t= or it is unclear which test statistic to use B. The sample has a size 15, and it is from a normally distributed population unknown standard deviation. Answers- z= t= or it is unclear which test statistic to use
We want to conduct a hypothesis test of the claim that the population mean score on a nationwide examination in anthropology is different from 470. So, we choose a random sample of exam scores. The sample has a mean of 487 and a standard deviation of 80.
For each of the following sampling scenarios, choose an appropriate test statistic for our hypothesis on the population mean.then calculate that statistic. Round to 2 decimal places.
A. The
B. The sample has a size 15, and it is from a normally distributed population unknown standard deviation.
Answers- z= t= or it is unclear which test statistic to use
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