Concept explainers
(a)
Check whetherit would be appropriate to construct a one sample t
(a)
Answer to Problem 73E
It is not appropriate to construct a one sample t interval to estimate the population mean.
Explanation of Solution
In the statement (a) the overall percent of adultsis equal tothe population proportion where z procedure is used to estimate it.
Hence, it is not appropriate to construct a one sample t interval to estimate the population mean.
(b)
Check whether it would be appropriate to construct a one sample t interval to estimate the population mean.
(b)
Answer to Problem 73E
It is not appropriate to construct a one sample t interval to estimate the population mean.
Explanation of Solution
In statement (b) the sample taken are not random. Thus confidence interval cannot construct.
Hence, it is not appropriate to construct a one sample t interval to estimate the population mean.
(c)
Check whether it would be appropriate to construct a one sample t interval to estimate the population mean.
(c)
Answer to Problem 73E
It is not appropriate to construct a one sample t interval to estimate the population mean.
Explanation of Solution
From statement (c) there are 3 outliers and the distribution is skewed. Thus, the condition of normal is not satisfied.
Hence, it is not appropriate to construct a one sample t interval to estimate the population mean.
Chapter 8 Solutions
The Practice of Statistics for AP - 4th Edition
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