Question

Who Watches More TV: Males or Females? Use technology and the StudentSurvey dataset to test whether the data provide evidence that there is a difference in the mean number of hours spent watching television per week between males and females. Click here for the dataset associated with this question. What are the hypotheses? Use subscripts 1 for females and 2 for males. 11 1 H HP UP HP HIP 11 12 11 Pi 1: P2

Answer 1

using minitab>stat>basic stat>two sample test

we have

Two-Sample T-Test and CI: TV, Gender

Two-sample T for TV

Gender N Mean StDev SE Mean
F 169 5.24 4.10 0.32
M 192 7.62 6.43 0.46

Difference = μ (F) - μ (M)
Estimate for difference: -2.383
95% CI for difference: (-3.487, -1.280)
T-Test of difference = 0 (vs ≠): T-Value = -4.25 P-Value = 0.000 DF = 328

a ) the null and alternative hypothesis is

Ho:$\mu_1=\mu_2$

Ha:

Zylin

b ) p value = 0.000

c ) since p value is less than 0.05 so we reject Ho and conclude that there is significant difference in the mean number of hours spent watching TVper week between females and males