Question
Question 13 On a mathematics test, scores are normally distributed with a mean of 77 and a standard deviation of 16.8. A student is randomly
Question 13
On a mathematics test, scores are normally distributed with a mean of 77 and a standard deviation of 16.8. A student is randomly selected.
c) Find the probability that his/her score is smaller than 60.
Question 13 options:
0.5714
0.4286
0.1562
0.4152
Question 14
On a mathematics test, scores are normally distributed with a mean of 77 and a standard deviation of 16.8. A student is randomly selected.
d) Find the probability that his/her score is between 60 and 80.
Question 14 options:
0.4152
0.5714
0.4286
0.1562
Question 15
The following confidence interval is obtained from a population proportionp:
0.883 What is the margin errorE. Question 15 options: 0.897 0.014 0.028 0.015 Question 16 Of 375 randomly selected students, 30 said that they planned to work in a rural community. a) Find 95% confidence interval for the true proportion of all medical students who plan to work in a rural community. Question 16 options: 0.0439< p<0.116 0.0570< p<0.103 0.0525< p<0.107 0.0474< p<0.113
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