In the case of a hypothesis test for the population mean, the test statistic turns out Typically, if the test statistic Z is positive, you want to find the probability that Z.
In “Hypothesis Test for a Population Mean,” the claims are statements about a population mean. But we will see that the steps and the logic of the hypothesis test.
where x is the sample mean, μ is the hypothesized population mean in the null You can find the Sample Size Calculator in Stat Trek's main menu under the.
Calculate z-statistic of a population mean. a hypothesized mean from the null hypothesis to a sample mean, when the population standard deviation is known.
A hypothesis about a population mean can be tested when sampling is from any of the Therefore, we calculate a z score and use it to test the hypothesis.
We therefore need to determine the likelihood of observing a sample mean of or higher when the true population mean is (i.e., if the null hypothesis is.
This section shows how to test the null hypothesis that the population mean is equal to The first step is to determine the sampling distribution of the mean.