One Sample Hypothesis Testing Review
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
Standards-aligned
Erin Truesdale
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the P-value and make a decision based on the given z-score and level of significance. Right tailed, z=1.98, =0.05.
P=0.239; Reject
P=0.239; Fail to reject
P=0.123; Reject
P=0.123; Fail to reject
Tags
CCSS.HSS.ID.A.4
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Find the critical value given the sample size and level of significance. Two-tailed, n=14, =0.01
t*=-2.345 and t*=2.345
t*=-3.012 and t*=3.012
t*=3.012
t*=-1.645 and t*=1.645
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A citrus grower's association believes that the mean consumption of fresh citrus fruits by families in the U.S. is at least 98 pounds per year. A random sample of 13 families in the US has a mean consumption of 89.5 pounds per year with a standard deviation of 11 pounds. Test the validity of this claim at α=0.01. Calculate t to the hundredths place. t=_______________
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A citrus grower's association believes that the mean consumption of fresh citrus fruits by families in the U.S. is at least 98 pounds per year. A random sample of 13 families in the US has a mean consumption of 89.5 pounds per year with a standard deviation of 11 pounds. Test the validity of this claim at α =0.01. (Use your t from the last question.) What is the correct decision and conclusion?
Reject . There is sufficient evidence to indicate that the average consumption of fresh citrus fruit by families in the US is at least 98 per year.
Reject . There is not sufficient evidence to indicate that the average consumption of fresh citrus fruit by families in the US is at least 98 per year.
Fail to reject . There is sufficient evidence to indicate that the average consumption of fresh citrus fruit by families in the US is at least 98 per year.
Fail to reject . There is not sufficient evidence to indicate that the average consumption of fresh citrus fruit by families in the US is at least 98 per year.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is this a z-test or t-test?
An auto maker estimates that the mean gas mileage of its luxury sedan is at least 25 miles per gallon. A random sample of eight such cars had a mean of 23 miles per gallon. The United Autoworkers have studied all cars of this type and found that the population standard deviation is 5 miles per gallon. Test the validity of this claim at =0.05.
z-test
t-test
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Calculate the P value.
An auto maker estimates that the mean gas mileage of its luxury sedan is at least 25 miles per gallon. A random sample of eight such cars had a mean of 23 miles per gallon. The United Autoworkers have studied all cars of this type and found that the population standard deviation is 5 miles per gallon. Test the validity of this claim at α =0.05.
P=.1786
P=.897
P=.5698
P=.1292
Tags
CCSS.HSS.ID.A.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Make a decision if P=.1292.
An auto maker estimates that the mean gas mileage of its luxury sedan is at least 25 miles per gallon. A random sample of eight such cars had a mean of 23 miles per gallon. The United Autoworkers have studied all cars of this type and found that the population standard deviation is 5 miles per gallon. Test the validity of this claim at α =0.05.
Fail to reject
Reject
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