Solution:
Given,
= 20
= 18.7
s = 3.4
n = 30
Test statistic = z
= ( - ) / s / n
= (18.7 - 20) / 3.4/ 30
Test statistic = - 2.0942
P-value
P(z < - 2.0942)
P-value = 0.0181
Question 13 Dean Halverson recently read that full-time college students study 20 hours Type numbers in...
Question 13 Dean Halverson recently read that full-time college students study 20 hours Type numbers in the boxes. each week. She decides to do a study at her university to see if there is evidence to show that this is not true at her university. A random sample of 30 students were asked to keep a diary of their activities over a period of several weeks. It was found that the average number of hours that the 30 students studied...
Question 13 Dean Halverson recently read that full-time college students study 20 hours Type numbers in the boxes. each week. She decides to do a study at her university to see if there is 10 points evidence to show that this is not true at her university. A random sample of 34 students were asked to keep a diary of their activities over a period of several weeks. It was found that the average number of hours that the 34...
Question 13 Dean Halverson recently read that full-time college students study 20 hours Type numbers in the boxes. each week. She decides to do a study at her university to see if there is 10 points evidence that students study an average of less than 20 hours each week. A random sample of 31 students were asked to keep a diary of their activities over a period of several weeks. It was found that he average number of hours that...
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Question 13 Dean Halverson recently read that full-time college students study 20 hours Type numbers in the boxes. each week. She decides to do a study at her university to see if there is 10 points evidence that students study an average of less than 20 hours each week. A random sample of 30 students were asked to keep a diary of their activities over a period of several weeks. It was found that he average number of hours that...
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