Question
In: Statistics and Probability
A random sample of 15 people was asked to record how much TV they watched every...
A random sample of 15 people was asked to record how much TV they watched every day for a week. The total number of hours each person watched during the week is displayed below.
The data are shown below.
| 0.0 | 7.8 | 8.6 | 9.7 | 11.3 |
| 17.7 | 19.0 | 19.1 | 19.5 | 20.4 |
| 22.9 | 25.8 | 33.8 | 36.8 | 39.2 |
b. If a normal approximation is appropriate, find the probability that a randomly selected person in the population watches less than 9 of TV per week. If a normal approximation is not appropriate, type “NA” (without the quotes).
Solutions
Expert Solution
Using probability plot itvis clear that the data follow Normality.
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orchestra answered 1 year agoRelated Solutions
A random sample of 15 people was asked to record how much TV they watched every...
A random sample of 15 people was asked to record how much TV
they watched every day for a week. The total number of hours each
person watched during the week is displayed below.
a. Is a normal approximation appropriate here?
A. Yes
B. No
The data are shown below.
0.0
7.8
8.6
9.7
11.3
17.7
19.0
19.1
19.5
20.4
22.9
25.8
33.8
36.8
39.2
b. If a normal approximation is appropriate, find the
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In a random sample of 200 people, 135 said that they watched educational TV. Find the...
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A.
0.325 < < 0.675
B.
–1.96 < < 1.96
C.
0.6101 < < 0.7399
D.
0.6704 < < 0.6796
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18
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16
15
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