Do the given data provide convincing evidence that the mean number of hours per day spent using electronic media was greater in 2009 than in 1999? Test the relevant hypotheses using a significance level of 0.01. (Use ?2009 − ?1999.)Find the test statistic. (Round your answer to two decimal places.)t = Find the df. (Round your answer down to the nearest whole number.)df = Use technology to find the P-value. (Round your answer to four decimal places.)P-value = Construct and interpret a 98% confidence interval estimate of the difference between the mean number of hours per day spent using electronic media in 2009 and 1999. (Use ?2009 − ?1999. Round your answers to three decimal places.)(______,____)hours The article "Plugged In, but Tuned Out"t summarizes data from two surveys of kids aged 8 to 18. One survey wasconducted in 1999 and the other was conducted in 2009. Data on number of hours per day spent using electronic mediathat are consistent with summary quantities given in the article are given below (the actual sample sizes for the twosurveys were much larger). For purposes of this exercise, assume that it is reasonable to regard the two samples asrepresentative of kids aged 8 to 18 in each of the 2 years that the surveys were conducted.20095 9 5 876.9.79.9.108.1999457757676.LO

Answered: Do the given data provide convincing…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

Do the given data provide convincing evidence that the mean number of hours per day spent using electronic media was greater in 2009 than in 1999? Test the relevant hypotheses using a significance level of 0.01. (Use ?₂₀₀₉ − ?₁₉₉₉.)

Find the test statistic. (Round your answer to two decimal places.)

t =

Find the df. (Round your answer down to the nearest whole number.)

df =

Use technology to find the P-value. (Round your answer to four decimal places.)

P-value =

Construct and interpret a 98% confidence interval estimate of the difference between the mean number of hours per day spent using electronic media in 2009 and 1999. (Use ?₂₀₀₉ − ?₁₉₉₉. Round your answers to three decimal places.)

(______,____)hours