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QUESTION 1 Suppose we are trying to calculate a 99% confidence interval for a population mean height of children ages 5 to 10 in the United States. To do this, we use a sample of size 180 children between 5 and 10. From that sample, we get a sample mean of 104 cm and a sample standard deviation of 11.5 cm. What critical number do we need to use to make this confidence interval? Use StatCrunch and round your answer to 3 decimal places.

QUESTION 1 Suppose we are trying to calculate a 99% confidence interval for a population mean height of children ages 5 to 10 in the United States. To do this, we use a sample of size 180 children between 5 and 10. From that sample, we get a sample mean of 104 cm and a sample standard deviation of 11.5 cm. What critical number do we need to use to make this confidence interval? Use StatCrunch and round your answer to 3 decimal places.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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QUESTION 1 Suppose we are trying to calculate a 99% confidence interval for a population mean height of children ages 5 to 10 in the United States. To do this, we use a sample of size 180 children between 5 and 10. From that sarmple, we get a sample mean of 104 cm and a sample standard deviation of 11.5 cm. What critical number do we need to use to make this confidence interval? Use StatCrunch and round your answer to 3 decimal places. QUESTION 2 uct a 15% confilence interval for a one sample population proportion Suppose you ae planning to Through use of StatCrunch, what would the value of your critical number need to be? QUESTION 3
Transcribed Image Text:QUESTION 1 Suppose we are trying to calculate a 99% confidence interval for a population mean height of children ages 5 to 10 in the United States. To do this, we use a sample of size 180 children between 5 and 10. From that sarmple, we get a sample mean of 104 cm and a sample standard deviation of 11.5 cm. What critical number do we need to use to make this confidence interval? Use StatCrunch and round your answer to 3 decimal places. QUESTION 2 uct a 15% confilence interval for a one sample population proportion Suppose you ae planning to Through use of StatCrunch, what would the value of your critical number need to be? QUESTION 3
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