You notice that the type of phone someone has and the computer operating system they use seems to be related. To determine if Phone and Computer OS are dependent, what are the appropriate hypotheses?

Question 1 options:

1)

H_O: Phone and Computer OS are independent of each other.

H_A: Phone and Computer OS are related to each other.

2)

H_O: Phone and Computer OS are related to one another.

H_A: Phone and Computer OS are independent of each other.

3)

H_O: Phone and Computer OS are not related to one another.

H_A: Phone and Computer OS display a negative correlation.

4)

H_O: Phone and Computer OS are not related to one another.

H_A: Phone and Computer OS display a positive correlation.

5)

There is not enough information to choose the correct set of hypotheses.

Question 2(1 point)

A marketing research firm wanted to determine whether an individual's favored Age Group and Social Network were related. For age they grouped by 18-34, 35-55, and 55+ and the social networks they investigated were Facebook, Google+, and Twitter. The table below presents their findings. To test at the 0.1 level to determine if Age Group and Social Network are dependent, calculate the chi-square test statistic and p-value.

Cross Tabulation of Age Group vs. Social Network Facebook Google+ Twitter 55+ 32 37 33 35-55 39 38 16 18-34 10 CO 11Cross Tabulation of Political Party vs. Car Origin Foreign Domestic Independent 50 16 Democrat 45 13 Republican 18 14 Pearson Chi-square = 5.334 DF = 2 P-value = 0.0695Predictor Constant weight = 1.951 R-Bqadj} = 63.11% Analysis of variance SOURCE Regression Error Total \fPredictor Constant height percent body fat = 2.513 Analysis of variance SOURCE Regression Error Total P 0.04943 3.956e13 4.44Te05 Rsqadj} = 93.73% 55 HE E 6900.44 3450.22 544.03 T6.1 6.34 EETE.54