Question

Notify Me Bookmark

According to the National Health Survey, the heights of adult males in the United States are normally distributed with mean 69.0 inches and standard deviation 2.8 inches. (a) What is the probability that an adult male chosen at random is between 66 and 72 inches tall? (Round your answer to three decimal places.) (b) What percentage of the adult male population is more than 6 feet tall? (Round your answer to one decimal place.) %

According to the National Health Survey, the heights of adult males in the United States are normally distributed with mean 69.0 inches and standard deviation 2.8 inches. (a) What is the probability that an adult male chosen at random is between 66 and 72 inches tall? (Round your answer to three decimal places.) (b) What percentage of the adult male population is more than 6 feet tall? (Round your answer to one decimal place.) %

Image text
According to the National Health Survey, the heights of adult males in the United States are normally distributed with mean 69.0 inches and standard deviation 2.8 inches.
(a) What is the probability that an adult male chosen at random is between 66 and 72 inches tall? (Round your answer to three decimal places.)
(b) What percentage of the adult male population is more than 6 feet tall? (Round your answer to one decimal place.) %

Detailed Answer

0 0

Please enter your email here. You will get email when this question is answered by our tutor.

Doubtrix Logo

Problem is not yet solved!

Click on Notify me to get email when question is answered.

Join Doubtrix with 7-days free trial

  • Icon Correct & Verified Answers
  • Icon No AI-Generated Answers
  • Icon Video Solution for Difficult Questions
  • Icon Work With Experts to Reach at Correct Answers
Notify me Login Sign Up

Similar/Related Questions

According to the National Health Survey, the heights of adult males in the United States are normally distributed with mean 69.0 inches and standard deviation 2.8 inches. (a) What is the probability that an adult male chosen at random is between 64 and 74 inches tall? (Round your answer to three decimal places.) (b) What percentage of the adult male population is more than 6 feet tall? (Round your answer to one decimal place.) %

Solution
0 0

According to a survey, the heights of adult males in a certain town are normally distributed with mean 170 centimetres and standard deviation 4 centimetres. What is the probability that an adult male chosen at random is between 165 cm and 176 cm tall? What percentage of the adult male population is more than 180 cm tall?
Solution
0 0

When 14 different second-year medical students measured the systolic blood pressure of the same person, they obtained the results listed below (in mmHg). Assuming that the population standard deviation is known to be 10mmHg, use a 0.05 significance level to test the claim that the mean blood pressure level is less than 140mmHg. Hypertension is defined to be a blood pressure level that is too high because it is 140mmHg or greater. Assume the blood pressure levels are normally distributed. Based on the hypothesis test results, can it be safely concluded that the person does not have hypertension? Click here to view page 1 of the standard normal table. 1 Click here to view page 2 of the standard normal table. 2 (a) Identify the null hypothesis and alternative hypothesis. A. H0 : µ = 140 versus H1 : µ 6= 140 B. H0 : µ = 140 versus H1 : µ > 140 C. H0 : µ = 140 versus H1 : µ < 140 (b) Identify the test statistic. z = (Round the final answer to two decimal places as needed. Round all intermediate values to two decimal places.) (c) Identify the P-value. The P-value is. (Round to three decimal places as needed.) (d) What is the final conclusion? A. Fail to reject H0. There is sufficient evidence to support the claim. B. Reject H0. There is not sufficient evidence to support the claim. C. Reject H0. There is sufficient evidence to support the claim. D. Fail to reject H0. There is not sufficient evidence to support the claim. (e) Can it be safely concluded that the person does not have hypertension? Yes No
Solution
0 0