Question

The National Center for Health Statistics reports that the mean systolic blood pressure for males 35...

The National Center for Health Statistics reports that the mean systolic blood pressure for males 35 to 44 years of age is 128. Do the executives of a large company have a different mean blood pressure? We collect data on 72 executives and find x-bar=126.07 and s=15. For this test, we plan to use a significance level of 0.05.

1. Using a calculator, conduct the appropriate hypothesis test. Report the p-value.

2. Based on the p-value found in the previous question, make a decision and interpret the results in context.

3. If you made an error with your decision what type of error could you have made? What would this mean in context?

4. Explain the power of this test in context

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The National Center for Health Statistics reports that the mean systolic blood pressure for males 35...
The National Center for Health Statistics reports that the mean systolic blood pressure for males 35 to 44 years of age is 128. Do the executives of a large company have a different mean blood pressure? We collect data on 72 executives and find x-bar=126.07 and s=15. For this test, we plan to use a significance level of 0.05. 1. Using a calculator, conduct the appropriate hypothesis test. Based on the p-value found throught the test, make a decision and...
The National Center for health statistics reports that the systolic blood pressure for males 35 to...
The National Center for health statistics reports that the systolic blood pressure for males 35 to 44 years of age has mean 128. The medical director of a large company looks at the medical records of 72 executives in this age group and finds that the mean systolic blood pressure in this sample is ?̄ = 126.07 and standard deviation is S=15. a) State the null and alternative hypotheses you would use to test whether the company’s executives have less...
1. The National Center for Health Statistics reports that the systolic blood pressure for males (35-44...
1. The National Center for Health Statistics reports that the systolic blood pressure for males (35-44 years of age) has a mean 128 and standard deviation 15. The medical director of a large company looks at the medical records of 105 executives in same age group and finds that the mean systolic blood pressure in this sample is 126.30. At 95% level, is this evidence that the company’s executives have a lower mean systolic blood pressure than the general population?
The National Center for Health Statistics reports that the mean systolic blood pressure for all females...
The National Center for Health Statistics reports that the mean systolic blood pressure for all females aged 45 to 54 years is 130 with a population standard deviation of 9. A researcher randomly samples 64 female executives aged 45 to 54 years and determines their mean systolic blood pressure to be 132. Using this sample result, conduct a hypothesis test to determine if the researcher can conclude that female executives aged 45 to 54 years have a higher mean systolic...
The systolic blood pressure (given in millimeters) of males has an approximately normal distribution with mean...
The systolic blood pressure (given in millimeters) of males has an approximately normal distribution with mean 123 and standard deviation 12. Systolic blood pressure for males follows a normal distribution. The bottom 7% of men have systolic blood pressures below what value?
One with a systolic blood pressure greater than 129 is considered to have high blood pressure....
One with a systolic blood pressure greater than 129 is considered to have high blood pressure. A study recorded the systolic blood pressures of 14 randomly selected Americans, which yielded a mean of 131.57 with standard deviation 15.88. Conduct a hypothesis test to see if you can say that Americans, on average, have high blood pressure. 1.Write the hypotheses for this test. 2.What is the test statistic? 3.What is the p-value? 4.Using α = 0.05, decide whether or not to...
One with a systolic blood pressure greater than 129 is considered to have high blood pressure....
One with a systolic blood pressure greater than 129 is considered to have high blood pressure. A study recorded the systolic blood pressures of 14 randomly selected Americans, which yielded a mean of 131.57 with standard deviation 15.88. Conduct a hypothesis test to see if you can say that Americans, on average, have high blood pressure. A. Write the hypotheses for this test. B. What is the test statistic? C. What is the p-value? D. Using α = 0.05, decide...
A doctor hypothesizes that females have higher systolic blood pressure than males. The doctor obtains the...
A doctor hypothesizes that females have higher systolic blood pressure than males. The doctor obtains the blood pressure from a sample of patients during their annual check-up. Below is the systolic blood pressure for the sample. What can be concluded with α = 0.05? male female 106 119 98 105 100 132 109 113 98 105 137 105 119 115 127 122 131 124 111 136 a) What is the appropriate test statistic? ---Select--- na z-test One-Sample t-test Independent-Samples t-test...
Application Exercise: A physician hypothesizes that males have higher systolic blood pressure than females. The physician...
Application Exercise: A physician hypothesizes that males have higher systolic blood pressure than females. The physician obtains a sample of patients and measures their blood pressures during their regular check-up. Below is the systolic blood pressure for the sample. What can the physician conclude with α = 0.01? male female 106 119 98 105 100 132 109 113 98 105 137 115 119 115 127 122 131 124 111 136 a) What is the appropriate test statistic? ---Select--- na z-test...
The systolic blood pressure (given in millimeters) of males has an approximately normal distribution with mean...
The systolic blood pressure (given in millimeters) of males has an approximately normal distribution with mean μ = 135 and standard deviation σ = 12. (a) Calculate the z-scores for the male systolic blood pressures 130 and 140 millimeters. (Round your answers to two decimal places.) 130 mm      z = 140 mm z = (b) If a male friend of yours said he thought his systolic blood pressure was 2.5 standard deviations below the mean, but that he believed his...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT