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Author Question: In a local university, 10 of the students live in the dormitories. A random sample of 100 students ... (Read 130 times)

olgavictoria

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on: Jun 24, 2018
In a local university, 10 of the students live in the dormitories. A random sample of 100 students is selected for a study.
 a. What is the probability that the sample proportion of students living in the dormitories is between .172 and .178?
 b. What is the probability that the sample proportion of students living in the dormitories is greater than .025?

Question 2

Assume z is a standard normal random variable. Then P(1.20  z  1.50) equals _____.
 a. .0483
  b. .3849
  c. .4332
  d. .8181


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ASDFGJLO

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

a. .0035
b. .9938

Answer to Question 2

d


olgavictoria

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Reply 2 on: Jun 24, 2018
Wow, this really help

zacnyjessica

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Reply 3 on: Yesterday
Excellent

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