A marketing research firm wanted to determine whether an individual\'s favored A

Question

A marketing research firm wanted to determine whether an individual's favored Age Group and Social Network were related. For age they grouped by 8-17, 18-34, 35-55, and 55+ and the social networks they investigated were Facebook, Google+, and Twitter. To determine independence, what are the appropriate hypotheses?

Question 1 options:

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?

1) HO: Age Group and Social Network are dependent on each other.
HA: Age Group and Social Network are not related to each other. 2) HO: Age Group and Social Network are independent of one another.
HA: Age Group and Social Network are dependent on one another. 3) HO: Age Group and Social Network are not related to one another.
HA: Age Group and Social Network display a negative correlation. 4) HO: Age Group and Social Network are not related to one another.
HA: Age Group and Social Network display a positive correlation. 5) Two of the other options are both correct.

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 2 options: 1) HO: Phone and Computer OS are independent of each other.
HA: Phone and Computer OS display a positive correlation. 2) HO: Phone and Computer OS are dependent on each other.
HA: Phone and Computer OS are independent of each other. 3) HO: Phone and Computer OS are not related to one another.
HA: Phone and Computer OS are related to one another. 4) There is not enough information to choose the correct set of hypotheses. 5) HO: Phone and Computer OS are independent of each other.
HA: Phone and Computer OS display a negative correlation.

Explanation / Answer

HO: Age Group and Social Network are independent of one another.
HA: Age Group and Social Network are dependent on one another.

2)

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

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