Answer Happy

1. (a) A statistician randomly sampled 100 observations and
found X̄ = 106 and s = 35. Calculate the t statistic and p value
for testing. H0 : μ = 100 against HA : μ > 100. Carry out the
test at the 1% level of significance. (b) Repeat part (a), with s =
25. (c) Repeat part (a), with s = 15.
2. Repeat question 1 using HA : μ ≠ 100
1. This test is called a
Group of answer choices
two tail test
none of these
lower tail test
upper tail test
confidence interval
2. Question 1(a)
The standard error (s.e.) of X̄ is (to 3
decimal places)
3. Question 1(a)
The t statistic is (to 3 decimal places)
4. Question 1(a)
The p value is (to 3 decimal places)
5. Question 1(a)
The conclusion of the hypothesis test is
Group of answer choices
reject H0
accept HA
do not reject H0
none of these
accept H0
6. Question 1(c)
The t statistic is (to 3 decimal places)
7. Question 1(c)
The p value is (to 3 decimal places)
8. Question 1(c)
The conclusion of the hypothesis test is
Group of answer choices
do not reject H0
reject H0
reject HA
accept HA
inconclusive
9. Question 2
This test is called a
Group of answer choices
one tail test
lower tail test
two tail test
upper tail test
none of these
10. Question 2(b)
The p value is (to 3 decimal places)