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7. Nielsen Media has recently begun attempting to estimate the monthly text usage for cell phone subscribers. In the second quarter of 2018, a random sample of 750 adults, aged 18- 24 was taken, and they were asked to report the number of text messages that were sent in the previous month. Similarly, a random sample of 750 teenagers, aged 13-17, were asked the n

7. Nielsen Media has recently begun attempting to estimate the monthly text usage for cell phone subscribers. In the second quarter of 2018, a random sample of 750 adults, aged 18- 24 was taken, and they were asked to report the number of text messages that were sent in the previous month. Similarly, a random sample of 750 teenagers, aged 13-17, were asked the n

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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7. Nielsen Media has recently begun attempting to estimate the monthly text usage for cell phone subscribers. In the second quarter of 2018, a random sample of 750 adults, aged 18- 24 was taken, and they were asked to report the number of text messages that were sent in the previous month. Similarly, a random sample of 750 teenagers, aged 13 – 17, were asked the number of text messages they had sent in the last month. The researchers at Nielsen would like to use this data to estimate the difference in the mean number of text messages sent by the two age groups. a. One-Sample proportion b. Two-Sample mean, independent samples c. One-Sample mean, t-statistic d. Two-Sample mean, dependent samples
Transcribed Image Text:7. Nielsen Media has recently begun attempting to estimate the monthly text usage for cell phone subscribers. In the second quarter of 2018, a random sample of 750 adults, aged 18- 24 was taken, and they were asked to report the number of text messages that were sent in the previous month. Similarly, a random sample of 750 teenagers, aged 13 – 17, were asked the number of text messages they had sent in the last month. The researchers at Nielsen would like to use this data to estimate the difference in the mean number of text messages sent by the two age groups. a. One-Sample proportion b. Two-Sample mean, independent samples c. One-Sample mean, t-statistic d. Two-Sample mean, dependent samples
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