While testing the null and alternate hypothesis: H0: mu=50 vs. Ha:mu not equal 5
ID: 3376267 • Letter: W
Question
While testing the null and alternate hypothesis:
H0: mu=50 vs. Ha:mu not equal 50
n=100
p-value = 0.0357
alpha = 0.05
What is the correct decision?
Reject Ha
Do not reject H0
Reject H0
none of these
4 points
QUESTION 21
When finding a confidence interval for a population mean based on a sample of size 8, which assumption is made?
The sample population is approximately normal.
The sampling distribution of z is normal.
Both populations have the same standard deviation.
There is no special assumption made.
4 points
QUESTION 22
The degrees of freedom used in a t distribution are equal to the sample size.
True
False
A.Reject Ha
B.Do not reject H0
C.Reject H0
D.none of these
Explanation / Answer
20) Rejection rule: If p-value is less than the significance level, we should reject the null hypothesis.
Option-C) Reject H0
21) Option-A) The sample population is approximately normal.
22) Option-B) False. Because degrees of freedom = sample size - 1.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.