Statistics
4th Edition
ISBN: 9780393929720
Author: David Freedman, Robert Pisani, Roger Purves
Publisher: Norton, W. W. & Company, Inc.
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Chapter 29.4, Problem 2ED
To determine
Identify whether the difference is statistically significant or not.
Explain whether the question makes sense or not.
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Question 21 of 28 (1 point) | Question Attempt: 5 of Unlimited
The proportion of phones that have more than 47 apps is 0.8783
Part: 1 / 2
Part 2 of 2
(b) Find the 70th
The 70th
percentile of the number of apps. Round the answer to two decimal places.
percentile of the number of apps is
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Hi, I need to sort out where I went wrong. So, please us the data attached and run four separate regressions, each using the Recruiters rating as the dependent variable and GMAT, Accept Rate, Salary, and Enrollment, respectively, as a single independent variable. Interpret this equation.
Round your answers to four decimal places, if necessary. If your answer is negative number, enter "minus" sign.
Equation for GMAT:
Ŷ = _______ + _______ GMAT
Equation for Accept Rate:
Ŷ = _______ + _______ Accept Rate
Equation for Salary:
Ŷ = _______ + _______ Salary
Equation for Enrollment:
Ŷ = _______ + _______ Enrollment
Question 21 of 28 (1 point) | Question Attempt: 5 of Unlimited
Dorothy ✔
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= 21
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How many apps? According to a website, the mean number of apps on a smartphone in the United States is 82. Assume
the number of apps is normally distributed with mean 82 and standard deviation 30.
Part 1 of 2
(a) What proportion of phones have more than 47 apps? Round the answer to four decimal places.
The proportion of phones that have more than 47 apps is 0.8783
Part: 1/2
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Chapter 29 Solutions
Statistics
Ch. 29.1 - Prob. 1EACh. 29.1 - Prob. 2EACh. 29.2 - Prob. 1EBCh. 29.2 - Prob. 2EBCh. 29.2 - Prob. 3EBCh. 29.2 - Prob. 4EBCh. 29.2 - Prob. 5EBCh. 29.2 - Prob. 6EBCh. 29.2 - Prob. 7EBCh. 29.2 - Prob. 8EB
Ch. 29.2 - Prob. 9EBCh. 29.3 - Prob. 1ECCh. 29.3 - Prob. 2ECCh. 29.3 - Prob. 3ECCh. 29.3 - Prob. 4ECCh. 29.3 - Prob. 5ECCh. 29.3 - Prob. 6ECCh. 29.3 - Prob. 7ECCh. 29.3 - Prob. 8ECCh. 29.4 - Prob. 1EDCh. 29.4 - Prob. 2EDCh. 29.4 - Prob. 3EDCh. 29.4 - Prob. 4EDCh. 29.4 - Prob. 5EDCh. 29.4 - Prob. 6EDCh. 29.5 - Prob. 1EECh. 29.5 - Prob. 2EECh. 29.5 - Prob. 3EECh. 29.5 - Prob. 4EECh. 29.7 - Prob. 1RECh. 29.7 - Prob. 2RECh. 29.7 - Prob. 3RECh. 29.7 - Prob. 4RECh. 29.7 - Prob. 5RECh. 29.7 - Prob. 6RECh. 29.7 - Prob. 7RECh. 29.7 - Prob. 8RECh. 29.7 - Prob. 9RECh. 29.7 - Prob. 10RECh. 29.7 - Prob. 11RECh. 29.7 - Prob. 12RECh. 29.8 - Prob. 1SRECh. 29.8 - Prob. 2SRECh. 29.8 - Prob. 3SRECh. 29.8 - Prob. 4SRECh. 29.8 - Prob. 5SRECh. 29.8 - Prob. 6SRECh. 29.8 - Prob. 7SRECh. 29.8 - Prob. 8SRECh. 29.8 - Prob. 9SRECh. 29.8 - Prob. 10SRECh. 29.8 - Prob. 11SRECh. 29.8 - Prob. 12SRECh. 29.8 - Prob. 13SRECh. 29.8 - Prob. 14SRECh. 29.8 - Prob. 15SRECh. 29.8 - Prob. 16SRECh. 29.8 - Prob. 17SRECh. 29.8 - Prob. 18SRECh. 29.8 - Prob. 19SRECh. 29.8 - Prob. 20SRECh. 29.8 - Prob. 21SRECh. 29.8 - Prob. 22SRECh. 29.8 - Prob. 23SRECh. 29.8 - Prob. 24SRECh. 29.8 - Prob. 25SRECh. 29.8 - Prob. 26SRECh. 29.8 - Prob. 27SRECh. 29.8 - Prob. 28SRECh. 29.8 - Prob. 29SRECh. 29.8 - Prob. 30SRECh. 29.8 - Prob. 31SRECh. 29.8 - Prob. 32SRECh. 29.8 - Prob. 33SRECh. 29.8 - Prob. 34SRECh. 29.8 - Prob. 35SRECh. 29.8 - Prob. 36SRECh. 29.8 - Prob. 37SRECh. 29.8 - Prob. 38SRECh. 29.8 - Prob. 39SRECh. 29.8 - Prob. 40SRE
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