Elementary Statistics 2nd Edition
Elementary Statistics 2nd Edition
2nd Edition
ISBN: 9781259724275
Author: William Navidi, Barry Monk
Publisher: McGraw-Hill Education
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Chapter 15, Problem 7CQ
To determine

To find:The p-value.

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A survey of 250250 young professionals found that two dash thirdstwo-thirds of them use their cell phones primarily for​ e-mail. Can you conclude statistically that the population proportion who use cell phones primarily for​ e-mail is less than 0.720.72​? Use a​ 95% confidence interval.       Question content area bottom Part 1 The​ 95% confidence interval is left bracket nothing comma nothing right bracket0.60820.6082, 0.72510.7251. As 0.720.72 is within the limits   of the confidence​ interval, we cannot   conclude that the population proportion is less than 0.720.72. ​(Use ascending order. Round to four decimal places as​ needed.)
I need help with this problem and an explanation of the solution for the image described below. (Statistics: Engineering Probabilities)
A survey of 250 young professionals found that two-thirds of them use their cell phones primarily for​ e-mail. Can you conclude statistically that the population proportion who use cell phones primarily for​ e-mail is less than 0.72?  Use a​ 95% confidence interval. Question content area bottom Part 1 The​ 95% confidence interval is [ ], [ ] As 0.72 is ▼   above the upper limit within the limits below the lower limit   of the confidence​ interval, we ▼   can cannot   conclude that the population proportion is less than  0.72. ​(Use ascending order. Round to four decimal places as​ needed.)

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Elementary Statistics 2nd Edition

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