The pulse rates of 200 college men are normally distributed with a mean of 72 and...
The pulse rates of 200 college men are normally distributed with
a mean of 72 and standard deviation 6. Using the empirical rule,
find
(a) the percentage of college men whose pulse rates are between 66
and 84. Do not write the percent sign.
(b) the percentage of college men whose pulse rates are at most 60. Do not write the percent sign.
(c) the number of college men whose pulse rates are at least 78.
Do not give answer as a percent.
Homework Answers
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The pulse rates of 200 college men are normally distributed with
a mean of 72 and...
9. A research study measured the pulse rates of 37 randomly chosen college men and found...
9. A research study measured the pulse rates of 37 randomly chosen college men and found a mean pulse rate of 70 beats per minute with a standard deviation of 7.85 beats per minute. Researchers want to know if the mean pulse rate for all college men is different from the current standard of 72 beats per minute. Assume that pulse rates are normally distributed. Test at 0.05 level of significance to prove the researcher's claim. (12 pts)
Use the accompanying data set on the pulse rates (in beats per minute) of males to...
Use the accompanying data set on the pulse rates (in beats per minute) of males to complete parts (a) and (b) below. LOADING... Click the icon to view the pulse rates of males. a. Find the mean and standard deviation, and verify that the pulse rates have a distribution that is roughly normal. The mean of the pulse rates is 71.871.8 beats per minute. (Round to one decimal place as needed.) The standard deviation of the pulse rates is 12.212.2...
19. Assume that pulse rates of men follow a bell-shaped (normal) distribution with a mean of...
19. Assume that pulse rates of men follow a bell-shaped (normal) distribution with a mean of 74 beats per minute and a standard deviation of 12 beats per minute. a. Based upon the Empirical Rule, give an interval that contains about 95% of all such pulse rates. this has to be solved using excel functions (new versions)
At one college GPA’s are normally distributed with a mean of 2.6 and a standard deviation...
At one college GPA’s are normally distributed with a mean of 2.6 and a standard deviation of 0.4. Approximately what percentage of mesaument fall in the interval (2.2, 3.8). Use the empirical rule.
In a particular city, pulse rates are normally distributed, with a mean of 70.4 beats per...
In a particular city, pulse rates are normally distributed, with a mean of 70.4 beats per minute and a standard deviation of 9.9 beats per minute. A researcher is doing a study that requires volunteers whose pulse rates are in the highest 30%. What is the pulse rate that separates the highest 30% from the rest? Include the correct units!
Assume that females have pulse rates that are normally distributed with a mean of mu equals...
Assume that females have pulse rates that are normally distributed with a mean of mu equals 72.0μ=72.0 beats per minute and a standard deviation of sigma equals 12.5σ=12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 78 beats per minute. b. If 25 adult females are randomly selected, find the probability that they have pulse rates with a mean less than...
Assume that temales have pulse rates that are normally distributed with a mean of u =...
Assume that temales have pulse rates that are normally distributed with a mean of u = 73.0 beats per minute and a standard deviation of o = 12.5 beats per minuto. Completo parts (a) through (1) below. a. 11 1 adult ferrate is randomly selected, find the probability that her pulse rate is between 66 beats per minute and 8 beats per minute. The probability is (Round to four decimal places as needed.) b. It 4 adult females are randomly...
Assume that females have pulse rates that are normally distributed with a mean of 73.0 beats...
Assume that females have pulse rates that are normally distributed with a mean of 73.0 beats per minute and a standard deviation of 12.5 beats per minute. a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 66 beats per minute and 80 beats per minute. The probability is? b. If 4 adult females are randomly selected, find the probability that they have pulse rates with a mean between 66 beats per minute...
Question 25 5 pts Heights of adult American men are normally distributed with a mean of...
Question 25 5 pts Heights of adult American men are normally distributed with a mean of 69 inches and a standard deviation of 3 inches. Using the Empirical rule, approximately what percentage of men have heights below 63 inches? 68% O O O 95% 5% 2.5% Question 26 5 pts Assume that women have heights that are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. Find the value of the quartile Q3. 66.1...
Suppose that pulse rates among healthy adults are normally distributed with a mean of 79 beats/minute...
Suppose that pulse rates among healthy adults are normally distributed with a mean of 79 beats/minute and a standard deviation of 8 beats/minute. What proportion of healthy adults have pulse rates that are more than 81 beats/minute? Round your answer to at least four decimal places.
9. A research study measured the pulse rates of 37 randomly chosen college men and found a mean pulse rate of 70 beats per minute with a standard deviation of 7.85 beats per minute. Researchers want to know if the mean pulse rate for all college men is different from the current standard of 72 beats per minute. Assume that pulse rates are normally distributed. Test at 0.05 level of significance to prove the researcher's claim. (12 pts)
Assume that temales have pulse rates that are normally distributed with a mean of u = 73.0 beats per minute and a standard deviation of o = 12.5 beats per minuto. Completo parts (a) through (1) below. a. 11 1 adult ferrate is randomly selected, find the probability that her pulse rate is between 66 beats per minute and 8 beats per minute. The probability is (Round to four decimal places as needed.) b. It 4 adult females are randomly...
Question 25 5 pts Heights of adult American men are normally distributed with a mean of 69 inches and a standard deviation of 3 inches. Using the Empirical rule, approximately what percentage of men have heights below 63 inches? 68% O O O 95% 5% 2.5% Question 26 5 pts Assume that women have heights that are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. Find the value of the quartile Q3. 66.1...
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