Shea wants to estimate the difference between two population means and plans to use data collected from two independent simple random samples of sizes n₁ = 30 and n₂ = 35. She does not know the population standard deviations, so she plans to construct a two-sample t-confidence interval for the difference in the two means. Use a t-distribution table to determine the positive t-critical value needed to construct a 99% confidence interval using a conservative estimate of the number of degrees of freedom. Enter the positive critical value precise to three decimal places. t =
Shea wants to estimate the difference between two population means and plans to use data collected from two independent simple random samples of sizes n₁ = 30 and n₂ = 35. She does not know the population standard deviations, so she plans to construct a two-sample t-confidence interval for the difference in the two means. Use a t-distribution table to determine the positive t-critical value needed to construct a 99% confidence interval using a conservative estimate of the number of degrees of freedom. Enter the positive critical value precise to three decimal places. t =
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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![Shea wants to estimate the difference between two population means and plans to use data collected from two independent
=
simple random samples of sizes n₁
30 and n₂ =
:35. She does not know the population standard deviations, so she plans to
construct a two-sample t-confidence interval for the difference in the two means.
Use a t-distribution table to determine the positive t-critical value needed to construct a 99% confidence interval using a
conservative estimate of the number of degrees of freedom.
Enter the positive critical value precise to three decimal places.
t =](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8483a4c4-fef1-4f1e-8f46-078ffafc4d43%2Fe862a0b8-aeb8-40cc-9ebc-eafa41eedbbf%2Fbx7o69_processed.png&w=3840&q=75)
Transcribed Image Text:Shea wants to estimate the difference between two population means and plans to use data collected from two independent
=
simple random samples of sizes n₁
30 and n₂ =
:35. She does not know the population standard deviations, so she plans to
construct a two-sample t-confidence interval for the difference in the two means.
Use a t-distribution table to determine the positive t-critical value needed to construct a 99% confidence interval using a
conservative estimate of the number of degrees of freedom.
Enter the positive critical value precise to three decimal places.
t =
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