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Chapter 8 Reading Quiz
1.An estimate of a population parameter that provides an interval of values believed to contain the value of the parameter is known as the:
2.When constructing a confidence interval for the population mean and the standard deviation of the sample is used, the degrees of freedom for the t distribution equals:
3.In interval estimation, as the sample size becomes larger, the interval estimate:
4.An interval estimate is a range of values used to estimate:
5.From a population that is normally distributed, a sample of 25 elements is selected and the standard deviation of the sample is computed. For the interval estimation of m, the proper distribution to use is the:
6.For the interval estimation of m when s is known and the sample is large, the proper distribution to use is:
7.As the sample size increases, the margin of error:
8.If an interval estimate is said to be constructed at the 90% confidence level, the confidence coefficient would be:
9.The absolute value of the difference between the point estimate and the population parameter it estimates is:
10.In order to use the normal distribution for interval estimation of m when s is known and the sample is very small, the population:
11.Whenever using the t distribution for interval estimation (when the sample size is very small), we must assume that:
12.When “s”is used to estimate “o~ (standard deviation),” the margin of error is computed by using:
13.In developing an interval estimate, if the population standard deviation is unknown:
14.After computing a confidence interval, the user believes the results are meaningless because the width of the interval is too large. Which one of the following is the best recommendation?
15.For which of the following values of P is the value of P(1 - P) maximized?
16.The ability of an interval estimate to contain the value of the population parameter is described by the
17.As the sample size increases, the margin of error

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- Normal Distribution, Variance, interval estimate