- If a population with µ =72 and o = 8, the distribution of z-scores will have a mean and standard deviation = %3D

A man measures his heart rate before using a treadmill and then after walking ona treadmill for 10 minutes on 7 separate days. His mean heart rate at baseline and10 minutes after treadmill walking is 85 and 93 beats per minute (bpm), respectively. The mean change from baseline to 10 minutes is 8 bpm with a standarddeviation of 6 bpm.(a)  What test can we use to compare pre- and post-treadmill heart rate?(b)  Implement the test in 2a, and report a two-tailedp-value.(c)  Provide a 90% confidence interval (CI) for the mean change in heart rate afterusing the treadmill for 10 minutes.(d)  What is your overall conclusion concerning the data?   this is a review question of ch8 bernard rosner. the solution is not provided at bartleby for this review question

A person's blood glucose level and diabetes are closely related. Let x be a random variable measured in milligrams of glucose per deciliter (1/10 of a liter) of blood. Suppose that after a 12-hour fast, the random variable x will have a distribution that is approximately normal with mean ? = 81 and standard deviation ? = 26. Note: After 50 years of age, both the mean and standard deviation tend to increase. For an adult (under 50) after a 12-hour fast, find the following probabilities. (Round your answers to four decimal places.)   (a) x is more than 60(b) x is less than 110(c) x is between 60 and 110(d) x is greater than 125 (borderline diabetes starts at 125)

A sample of size 50 will be drawn from a population with mean 76 and standard deviation 14. Find the 69th percentile of  x.

adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches find the z- score of a man 65.6 inches tall. ( to 2 decimal places)

Blood platelet counts of women have a bell-shaped distribution with a mean of 255.1 and a standard deviation of 65.5. Using chebyshev’s theorem what is the known percentage of women with platelet counts that are within 2 standard deviations of the mean?

A sample of size 31 was gathered from high school seniors to estimate how many intended to attend the state university. It is known that the proportion of the population answering "yes" was 0.7. What are the mean and standard deviation, and standard error of the mean of this sample? mean = E(p) = %3D standard error = SD(p) (accurate to 3 decimal places)

According to a study, BMI among men aged 16-61 in the world follows a Normal distribution with mean 25.27 kg/m2 and variance 15.36 (kg/m2)2. What is the BMI of a man who caps the 20th percentile of men? Round to 4 decimal digits.

Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the height of a man with a z-score of -1.3 (to 2 decimal places)