The average daily volume of a computer stock in 2011 was µ = 35.1 million shares, according to a reliable source. A stock analyst believes that the stock volume in 2018 is different from the 2011 level. Based on a random sample of 30 trading days in 2018, he finds the sample mean to be 29.3 million shares, with a standard deviation of s= 15.3 million shares Test the hypotheses by constructing a 95% confidence interval Complete parts (a) through (c) below. (a) State the hypotheses for the test Но H 35.1 million shares H₁ H #35 1 million shares (b) Construct a 95% confidence interval about the sample mean of stocks traded in 2018 With 95% confidence, the mean stock volume in 2018 is between million shares and (Round to three decimal places as needed) C million shares.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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The average daily volume of a computer stock in 2011 was μ = 35.1 million shares, according to a reliable source. A stock analyst believes that the stock volume in 2018 is different from the 2011 level.
Based on a random sample of 30 trading days in 2018, he finds the sample mean to be 29.3 million shares, with a standard deviation of s= 15.3 million shares. Test the hypotheses by constructing a
95% confidence interval Complete parts (a) through (c) below
(a) State the hypotheses for the test.
Ho H = 35.1 million shares
H₁ P #35 1 million shares
(b) Construct a 95% confidence interval about the sample mean of stocks traded in 2018
With 95% confidence, the mean stock volume in 2018 is between million shares and
(Round to three decimal places as needed)
million shares.
Transcribed Image Text:The average daily volume of a computer stock in 2011 was μ = 35.1 million shares, according to a reliable source. A stock analyst believes that the stock volume in 2018 is different from the 2011 level. Based on a random sample of 30 trading days in 2018, he finds the sample mean to be 29.3 million shares, with a standard deviation of s= 15.3 million shares. Test the hypotheses by constructing a 95% confidence interval Complete parts (a) through (c) below (a) State the hypotheses for the test. Ho H = 35.1 million shares H₁ P #35 1 million shares (b) Construct a 95% confidence interval about the sample mean of stocks traded in 2018 With 95% confidence, the mean stock volume in 2018 is between million shares and (Round to three decimal places as needed) million shares.
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