Lighter cars are more fuel-efficient than heavier cars. An environmentalist would like to estimate the true mean weight of al cars. To do so, she selects a random sample of 30 cars and determines the 90% confidence interval for the true mean weight to be 2.8 to 3.4 tons. Which of these statements is a correct interpretation of the confidence level? O There is a probability of 0.90 that the confidence interval (2.8, 3.4) captures the true mean weight of all cars. O The environmentalist can be 90% confident that the true mean weight ot all cars is between 2.8 and 3.4 tons. If many random samples of size 30 are selected from the population of all cars, approximately 90% of the sample means will be between 2.8 and 3.4 tons. If many random samples of size 30 are selected from the population of all cars, about 90% of the intervals would Save and Exit Next Submit Mark this and return

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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cars. To do so, she selects a random sample of 30 cars and determines the 90% confidence interval for the true mean weight to
be 2,8 to 3,4 tons, Which of these statements is a correct interpretation of the confidence level?
O There is a probability of 0.90 that the confidence interval (2.8, 3.4) captures the true mean weight of all cars.
O The environmentalist can be 90% confident that the true mean weight of all cars is between 2.8 and 3.4 tons.
OIf many random samples of size 30 are selected from the population of all cars, approximately 90% of the sample
means will be between 2.8 and 3.4 tons.
OIf many random samples of size 30 are selected from the population of all cars, about 90% of the intervals would
capture the true mean weight of all cars.
Save and Exit Next
Submit
Mark this and return
p
23
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Transcribed Image Text:cars. To do so, she selects a random sample of 30 cars and determines the 90% confidence interval for the true mean weight to be 2,8 to 3,4 tons, Which of these statements is a correct interpretation of the confidence level? O There is a probability of 0.90 that the confidence interval (2.8, 3.4) captures the true mean weight of all cars. O The environmentalist can be 90% confident that the true mean weight of all cars is between 2.8 and 3.4 tons. OIf many random samples of size 30 are selected from the population of all cars, approximately 90% of the sample means will be between 2.8 and 3.4 tons. OIf many random samples of size 30 are selected from the population of all cars, about 90% of the intervals would capture the true mean weight of all cars. Save and Exit Next Submit Mark this and return p 23 & 3 4 6. 7 8. y h . k C V b n, m
Lighter cars are more fuel-efficient than heavier cars. An environmentalist would like to estimate the true mean weight of all
cars. To do so, she selects a random sample of 30 cars and determines the 90% confidence interval for the true mean weight to
be 2.8 to 3.4 tons. Which of these statements is a correct interpretation of the confidence level?
OThere is a probability of 0.90 that the confidence interval (2.8, 3.4) captures the true mean weight of all cars.
O The environmentalist can be 90% confident that the true mean weight of all cars is between 2.8 and 3,4 tons.
OIf many random samples of size 30 are selected from the population of all cars, approximately 90% of the sample
means will be between 2.8 and 3.4 tons.
OIf many random samples of size 30 are selected from the population of all cars, about 90% of the intervals would
Submit
Save and Exit Next
Mark this and return
hp
23
&
3
4.
7
8.
e
y
d
h
j
k
C
V
n.
Transcribed Image Text:Lighter cars are more fuel-efficient than heavier cars. An environmentalist would like to estimate the true mean weight of all cars. To do so, she selects a random sample of 30 cars and determines the 90% confidence interval for the true mean weight to be 2.8 to 3.4 tons. Which of these statements is a correct interpretation of the confidence level? OThere is a probability of 0.90 that the confidence interval (2.8, 3.4) captures the true mean weight of all cars. O The environmentalist can be 90% confident that the true mean weight of all cars is between 2.8 and 3,4 tons. OIf many random samples of size 30 are selected from the population of all cars, approximately 90% of the sample means will be between 2.8 and 3.4 tons. OIf many random samples of size 30 are selected from the population of all cars, about 90% of the intervals would Submit Save and Exit Next Mark this and return hp 23 & 3 4. 7 8. e y d h j k C V n.
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