Select all that apply. We show that our sample statistics have (at minimum) a somewhat normal distribution because this allows us to use t and z criti

tinfoQ 2021-01-28 Answered
Select all that apply. We show that our sample statistics have (at minimum) a somewhat normal distribution because
this allows us to use t and z critical values.
this allows us to use t and z tables for probabilities.
this tells us that our sampling is appropriate.
normal distributions are cool and that's all we talk about in this class.
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Expert Answer

Arnold Odonnell
Answered 2021-01-29 Author has 109 answers
Step 2
The correct option will be first two.
The Explanation as follows,
The z table is used only when the sample is normally distributed. It is used to calculate the probability value and also to get the z critical values. The value of the sample size is being less than 30 that is being an exact sample. On using the t-statistic the critical values are calculated. The t table is used to find the probabilities. Hence, the value of option 3 and 4 is said to be irrelevant.
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