## Question

## Transcribed Text

QUESTION 1
Choose the best answer.
A researcher claims that the average wind speed in a certain city is 8 miles per hour. A sample of a. -1.895
32 days has an average wind speed of 8.2 miles per hour. The population standard deviation for
b.
this city's wind speed is 0.6 miles per hour. At a significance level of 0.05, what is the test
Reject Ho because the test statistic is in the critical region and the p-value is less than alpha.
statistic for this hypothesis test?
C.
Fail to reject Ho because the test statistic is not in the critical region and the p-value is less than alpha.
A researcher claims that the average wind speed in a certain city is 8 miles per hour. A sample of
d.
+ 1.96
32 days has an average wind speed of 8.2 miles per hour. The population standard deviation for
this city's wind speed is 0.6 miles per hour. At a significance level of 0.05, what is the critical
e. 0.2756
value(s) for this hypothesis test?
f.
Reject Ho because the test statistic is in the critical region and the p-value is greater than alpha.
A researcher claims that the average wind speed in a certain city is 8 miles per hour. A sample of g. -2.306
32 days has an average wind speed of 8.2 miles per hour. The population standard deviation for
h.
this city's wind speed is 0.6 miles per hour. At a significance level of 0.05, what is the p-value
Reject Ho because the test statistic is not in the critical region and the p-value is less than alpha.
for this hypothesis test?
i.
+ 1.645
A researcher claims that the average wind speed in a certain city is 8 miles per hour. A sample of
32 days has an average wind speed of 8.2 miles per hour. The population standard deviation for
-1.860
this city's wind speed is 0.6 miles per hour. At a significance level of 0.05, what is the decision
k.
0.0593
for this hypothesis test?
I.
-0.626
An educator claims that the average salary of substitute teachers in the school districts in his
m. 0.0687
county is less than $90 per day. A random sample of 8 schools districts is selected and the daily
salaries are shown below. What is the test statistic for this hypothesis test?
n. Fail to reject Ho because the test statistic is not in the critical region and the p-value is greater than alpha.
$90 $86 $90 $85 $100 $85 $90 $85
o.
Fail to reject Ho because the test statistic is in the critical region and the p-value is greater than alpha.
p. 0.2656
An educator claims that the average salary of substitute teachers in the school districts in his
county is less than $90 per day. A random sample of 8 schools districts is selected and the daily
q.
1.89
salaries are shown below. What is the critical value(s) for this hypothesis test?
$90 $86 $90 $85 $100 $85 $90 $85
An educator claims that the average salary of substitute teachers in the school districts in his
county is less than $90 per day. A random sample of 8 schools districts is selected and the daily
salaries are shown below. What is the p-value for this hypothesis test?
$90 $86 $90 $85 $100 $85 $90 $85
An educator claims that the average salary of substitute teachers in the school districts in his
county is less than $90 per day. A random sample of 8 schools districts is selected and the daily
salaries are shown below. What is the decision for this hypothesis test?
$90 $86 $90 $85 $100 $85 $90 $85
QUESTION 2
Choose the best answer.
An estimated 78.1% of U.S. households had high-speed internet connection in 2013. A researcher wants to
A.
1.04
test this claim in his area because he believes that the estimate should be much higher. In a random
sample of 510 households it was found that 408 had high-speed internet connection. Is there evidence to
B. 2.575
show that the percentage of U.S. households in this researcher's area with high-speed internet connection
C.
1.96
is greater than 78.1%? Let a = 05
What is the test statistic for this hypothesis test?
D.
0.1497
E.
1.645
An estimated 78.1% of U.S. households had high-speed internet connection in 2013. A researcher wants to F.
test this claim in his area because he believes that the estimate should be much higher. In a random
Fail to reject the null because the test statistic is in the critical region and the p-value is greater than alpha.
sample of 510 households it was found that 408 had high-speed internet connection. Is there evidence to
G.
Fail to reject the null because the test statistic is not in the critical region and the p-value is greater than alpha.
show that the percentage of U.S. households in this researcher's area with high-speed internet connection
is greater than 78.1%? Let a = 05.
H.
Reject the null because the test statistic is in the critical region and the p-value is greater than alpha.
What is the critical value(s) for this hypothesis test?
I.
0.8503
J.
2.33
An estimated 78.1% of U.S. households had high-speed internet connection in 2013. A researcher wants to
test this claim in his area because he believes that the estimate should be much higher. In a random
K.
Reject the null because the test statistic is not in the critical region and the p-value is less than alpha.
sample of 510 households it was found that 408 had high-speed internet connection. Is there evidence to
show that the percentage of U.S. households in this researcher's area with high-speed internet connection
is greater than 78.1%? Let a = 05.
What is the p-value for this hypothesis test?
An estimated 78.1% of U.S. households had high-speed internet connection in 2013. A researcher wants to
test this claim in his area because he believes that the estimate should be much higher. In a random
sample of 510 households it was found that 408 had high-speed internet connection. Is there evidence to
show that the percentage of U.S. households in this researcher's area with high-speed internet connection
is greater than 78.1%? Let a = 05.
What is the decision for this hypothesis test?

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Question 1

1. z=1.8856 option q

2. option d

3. p-value=0.0593 option k...

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