rin is a nutritionist and cardiologist. She is testing whether the average total cholesterol level of adults in the region is less than 175mgdL. Erin randomly selects 25 people in the region who willingly allowed their blood to be drawn for the survey. Based on several previous studies, Erin assumes that the population standard deviation for the total cholesterol level is 30.22mgdL. For this test: H0:μ=175; Ha:μ<175, which is a left-tailed test. The test results are: z0=−1.158, p-value is = 0.123 Using a 5% level of significance, which of the following are appropriate conclusions for this hypothesis test? Select all that apply. Select all that apply: We reject H0. We fail to reject H0. At the 5% significance level, the data provide sufficient evidence to conclude that the average total cholesterol level of adults in the region is less than 175mgdL. At the 5% significance level, the data do not provide sufficient evidence to conclude that the average total cholesterol level of adults in the region is less than 175mgdL
Erin is a nutritionist and cardiologist. She is testing whether the average total cholesterol level of adults in the region is less than 175mgdL. Erin randomly selects 25 people in the region who willingly allowed their blood to be drawn for the survey. Based on several previous studies, Erin assumes that the population standard deviation for the total cholesterol level is 30.22mgdL.
For this test: H0:μ=175; Ha:μ<175, which is a left-tailed test.
The test results are: z0=−1.158, p-value is = 0.123
Using a 5% level of significance, which of the following are appropriate conclusions for this hypothesis test? Select all that apply.
Select all that apply:
-
We reject H0.
-
We fail to reject H0.
-
At the 5% significance level, the data provide sufficient evidence to conclude that the average total cholesterol level of adults in the region is less than 175mgdL.
-
At the 5% significance level, the data do not provide sufficient evidence to conclude that the average total cholesterol level of adults in the region is less than 175mgdL.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
