1. The larger the sample size, a. the smaller the standard error and the narrowe

Question

1. The larger the sample size,

a. the smaller the standard error and the narrower the confidence interval

b. the smaller the standard error and the wider the confidence interval

c. the larger the standard error and the narrower the confidence interval

d. the larger the standard error and the wider the confidence interval

2. Often encountered in national polls are same sizes of about

a. 10,000

b. 1,500

c. 500

d. 100

3. The t distribution is most different from the standard normal distribution when sample size is

a. infinitely large

b. very large

c. large

d. very small

4. To obtain the estimated standard error, divide the sample standard deviation by

a. n

b. square root of n

c. n-1

d. square root of n-1

5. A property of all hypothesis tests is that

a. common outcomes cause the null hypothesis to be rejected

b. rare outcomes cause the null hypothesis to be rejected

c. common outcomes occur about as often as rare outcomes

d. rare outcomes could reflect an unduly small sample size

Explanation / Answer

1)The larger the sample size

(a)the smaller the standard error and the narrower the confidence interval

2)

Often encountered in national polls are same sizes of about

a)10,000

3)The t distribution is most different from the standard normal distribution when sample size is

(d)very samll

4)To obtain the estimated standard error, divide the sample standard deviation by

(b) square root of n

5)A property of all hypothesis tests is that

(b) rare outcomes cause the null hypothesis to be rejected

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.