answer the following multiple choice questions 1.) a Sampling distribution of me

Question

answer the following multiple choice questions

1.) a Sampling distribution of means us...
a. used for estimating a sample
b. tends to be skewed
c. used for estimating population means
d. sometimes based on different sizes samples

2.) The key characteristic to distinguish between using a T and a Z test is?
a. sample size
b. whether is known
c. whether is known
d. whether the sample is normally distributed

3.) Parameter is to population as statistic is to:
a. inferential
b. class name
c. sampling
d. sample

4.) I'm a manufacturing process, in one hour 500 small containers were checked for precise size and 35 were found to be too large by over 4 millimeters. The best point estimate of the proportion of all containers manufactured that day is:
a. .07
b. .00875
c. 4/35 or .11
d. .35

Explanation / Answer

1) Since sampling us done for estimating a population parameter so the cirrect option is

c. used for estimating population means

2) Whether T test is to be used or Z test is to be used depends on the standard deviation of the population. If standard deviation is known we use z test and if standard deviation is not known we use t test

So option c. whether is known

3) Correct option is d) Sample

Definition of static

4) The point estimate containers that were checked for precise size and found to be too large by over 4 millimeters is 35÷500=0.07

Option a) is correct

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