Answer:
represent the sample mean or the statistic calculated from the sample
This value is calculated from the following formula:
represent the population standard deviation for the sample
sample size
represent the value that we want to test
Step-by-step explanation:
Data given and notation
represent the sample mean or the statistic calculated from the sample
This value is calculated from the following formula:
represent the population standard deviation for the sample
sample size
represent the value that we want to test
represent the significance level for the hypothesis test.
z would represent the statistic (variable of interest)
represent the p value for the test (variable of interest)
State the null and alternative hypotheses.
We need to conduct a hypothesis in order to check if the mean is less than 6.8, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis: