Concept explainers
(a)
Check whether the explanationis correct or not.
(a)
Answer to Problem 18E
The explanation (a) there is a 95%
Explanation of Solution
Given information:
Confidence interval = 95%
Mean IQ score = 107.8 to 116.2
95% probability in the interval from 107.8 to 116.2 does notcontain true population mean
Hence, the explanation (a) is incorrect.
(b)
Check whether the explanation is correct or not.
(b)
Answer to Problem 18E
The explanation (b) there is a 95% chance that the interval from 107.8 to 116.2 contains
Explanation of Solution
Given information:
Confidence interval = 95%
Mean IQ score = 107.8 to 116.2
Probability that contains sample mean
Hence, the explanation(b) is incorrect.
(c)
Check whether the explanation is correct or not.
(c)
Answer to Problem 18E
The explanation (c) this interval was constructed using a method that produces intervals that capture the true mean in 95% of all possible sample is correct.
Explanation of Solution
Given information:
Confidence interval = 95%
Mean IQ score = 107.8 to 116.2
The confidence interval of 95% in the interval from 107.8 to 116.2 contains the true mean of all possible sample.
Hence, the explanation is correct.
(d)
Check whether the explanation is correct or not.
(d)
Answer to Problem 18E
The explanation (d) 95% of all possible sample will contain the interval from 107.8 to 116.2 is incorrect.
Explanation of Solution
Given information:
Confidence interval = 95%
Mean IQ score = 107.8 to 116.2
95% probability in the interval from 107.8 to 116.2 does not contain true population mean
Hence, the explanation (d) is incorrect.
(e)
Check whether the explanation is correct or not.
(e)
Answer to Problem 18E
The explanation (e) probability that the interval from 107.8 to 116.2 captures
Explanation of Solution
Given information:
Confidence interval = 95%
Mean IQ score = 107.8 to 116.2
The interval from 107.8 to 116.2, the confidence interval does not contains the true population mean
Hence, the explanation is correct.
Chapter 8 Solutions
The Practice of Statistics for AP - 4th Edition
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