
Hypothesis testing using means
Quiz
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
Standards-aligned
Holly Breault
Used 1+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a recent survey, the average amount of money
students have in their pockets is $5.40 with a standard
deviation of $1.20. A teacher feels that the average
amount is actually higher. She surveys 80 randomly
selected students and finds the average amount is
$5.50. At α = 0.05, test the teacher’s claim that the
average amount of money is actually higher than $5.40.
Reject Ho
Reject Ha
Fail to reject Ho
Fail to reject Ha
Tags
CCSS.HSS.IC.B.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a recent survey, the average amount of money
students have in their pockets is $5.40 with a standard
deviation of $1.20. A teacher feels that the average
amount is actually higher. She surveys 80 randomly
selected students and finds the average amount is
$5.50. At α = 0.05, test the teacher’s claim that the
average amount of money is actually higher than $5.40.
There is enough evidence to reject the claim
There is not enough evidence to reject the claim
There is enough evidence to support the claim
There is not enough evidence to support the claim
Tags
CCSS.HSS.IC.B.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The average miles on a tank of gas for the Ford
Explorer is 300 miles with a standard deviation of 22
miles. A consumer group feels the average is actually
lower. They survey 40 vehicles and find the average
miles per tank is 290 miles. At α = 0.05, test the
consumer groups’ claim that the miles per tank is
actually lower than 300 miles.
Reject Ho
Reject Ha
Fail to reject Ho
Fail to reject Ha
Tags
CCSS.HSS.IC.B.4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The average miles on a tank of gas for the Ford
Explorer is 300 miles with a standard deviation of 22
miles. A consumer group feels the average is actually
lower. They survey 40 vehicles and find the average
miles per tank is 290 miles. At α = 0.05, test the
consumer groups’ claim that the miles per tank is
actually lower than 300 miles.
There is enough evidence to reject the claim
There is not enough evidence to reject the claim
There is enough evidence to support the claim
There is not enough evidence to support the claim
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A cereal company claims the mean sodium content in
one serving of its cereal is no more than 230 mg. You
work for a national health service and are asked to test
this claim. You find that a random sample of 52
servings has a mean sodium content of 232 mg and a
standard deviation of 10 mg. At α = 0.05, do you have
enough evidence to reject the company’s claim?
Reject Ho
Reject Ha
Fail to reject Ho
Fail to reject Ha
Tags
CCSS.HSS.IC.B.4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A cereal company claims the mean sodium content in
one serving of its cereal is no more than 230 mg. You
work for a national health service and are asked to test
this claim. You find that a random sample of 52
servings has a mean sodium content of 232 mg and a
standard deviation of 10 mg. At α = 0.05, do you have
enough evidence to reject the company’s claim?
There is enough evidence to reject claim
There is not enough evidence to reject claim
There is enough evidence to support claim
There is not enough evidence to support claim
Tags
CCSS.HSS.IC.B.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A manufacturer claims that his tires last at least 40,000
miles. A test on 25 tires reveals that the mean life of a tire
is 39,750 miles, with a standard deviation of 387 miles.
Test the Manufacturer’s claim at α = .01.
Reject Ho
Reject Ha
Fail to reject Ho
Fail to reject Ha
Tags
CCSS.HSS.IC.B.4
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