1.You plan to randomly select 10 students from your campus and ask them how many minutes...
1.You plan to randomly select 10 students from your campus and ask them how many minutes they exercised in the past seven days. The distribution of values taken by the average exercising time in all possible samples of size 10 is the
(a) probability distribution of exercising times.
(b) sampling distribution of average exercising times.
(c) variance of the exercising time values.
(d) population parameter.
2. The sampling distribution of a statistic is
a. the probability that we obtain the statistic in repeated random samples.
b. the mechanism that determines whether randomization was effective.
c. the distribution of values taken by a statistic in all possible samples of the same size from the same population.
d. the extent to which the sample results differ systematically from the truth.
Homework Answers
Ans:
1) sampling distribution of average exercising times.
2) the distribution of values taken by a statistic in all possible samples of the same size from the same population.
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