Mathematics, 12.01.2021 07:50 ylianafghgfdsnm1479
A city planner would like to estimate the true mean annual income of all households in the city. She selects a random sample of 50 households and determines that the 99% confidence interval for the true mean annual income of all households in the city to be $42,000β$68,000. Which of these statements is a correct interpretation of the confidence level?
A) Approximately 99% of all households have incomes between $42,000 and $68,000.
B) The city planner can be 99% confident that the true mean annual income for all households in the city is between $42,000 and $68,000.
C) If many random samples of size 50 are selected from all households in the city, approximately 99% of the intervals would capture the true mean household income.
D) Approximately 99% of the sample means, computed from many random samples of size 50 from all households in the city, will fall between approximately $42,000 and $68.000.
Answers: 3
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A city planner would like to estimate the true mean annual income of all households in the city. She...
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