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Author Question: Weights of females have approximately a normal distribution with mean 135 lbs. and standard ... (Read 115 times)

Mollykgkg

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on: Jul 24, 2018
Weights of females have approximately a normal distribution with mean 135 lbs. and standard deviation 20 lbs. Allison weighs 145 lbs. What is the z-score for her weight?
 a. 10
  b. 1.50
  c. 0.50
  d. 0.20

Question 2

For each study, decide if the two samples are independent samples or paired samples. A group of 50 students had their blood pressures measured before and after watching a movie containing violence. The mean blood pressure before the movie was compared with the mean pressure after the movie.
 a. Independent samples
  b. Paired samples


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Yixagurpuldink

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

C

Answer to Question 2

B


Mollykgkg

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Reply #2 on: Jul 24, 2018
TY


Yixagurpuldink

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Reply #3 on: Jul 24, 2018
You're welcome


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