Question

_____________I. The value(s) assigned to a population parameter based on the value(s) of a sample statistic is(are) ______________?

a) the probabilities B) a sampling distribution C) the probability distribution D) estimates(s)

_____________II. For any shaped distribution, we can use the Student t distribution to make a confidence interval for a population mean provided that the sample standard deviation, s, is known and the sample size, n, is ______________?

1. greater than 10         B) at least 30      C) less than 25        D) greater than 25

_____________III. The z value for a 95% confidence interval for the population mean of a normal distribution with σ   known is ____________?

1. 1.96                B) 2.33                 C) 1.44                 D) 2.58

Answer 1

1) The value assigned to a population parameter based on the value of sample statistic is called " estimates "

2) For any shaped distribution, we can use student t distribution to make a confidence interval for a population mean provided that the sample standard deviation, s, is known and the sample size , n, is " at least 30 "

3) The z value for a 95% confidence interval for the population mean of a normal distribution with $\sigma$ known is " 1.96 "