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Author Question: Pulse rates of adult men are approximately normal with a mean of 70 and a standard deviation of 8 . ... (Read 78 times)

cabate

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on: Jul 24, 2018
Pulse rates of adult men are approximately normal with a mean of 70 and a standard deviation of 8 . Which choice correctly describes how to find the proportion of men that have a pulse rate greater than 78?
 a. Find the area to the left of z = 1 under a standard normal curve.
  b. Find the area between z = -1 and z = 1 under a standard normal curve.
  c. Find the area to the right of z =1 under a standard normal curve.
  d. Find the area to the right of z = -1 under a standard normal curve.

Question 2

For each study, decide if the two samples are independent samples or paired samples. A study compared the average number of courses taken by a random sample of 100 freshmen at a university with the average number of courses taken by a separate random sample of 50 freshmen at a community college.
 a. Independent samples
  b. Paired samples


kusterl

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Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

A


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