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Description

You

work at Happy Joe’s family restaurant and want to see if customer meal

satisfaction and gender are related to one another. You take a sample of

customers and ask them if they were satisfied with their meal and note

their gender. To test at the 0.01 level to determine if Satisfaction and

Gender are dependent, calculate the chi-square test statistic and

p-value.

**Question 2**

A

political poll asked potential voters if they felt the economy was

going to get worse, or better during the next 12 months. The party

affiliations of the respondents were also noted. The results are shown

in the following table. To test at the 0.01 level to determine if Party

Affiliation and Response are dependent, calculate the chi-square test

statistic and p-value.

**Question 3**

A

marketing research firm wanted to determine whether an individual’s

favored Social Network and Age Group 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. The table below presents their

findings. Identify the correct conclusion using the 0.05 level of

significance.

**Question 4**

A

marketing research firm wanted to determine whether an individual’s

favored Social Network and Age Group 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. The table below presents their

findings. Identify the correct conclusion using the 0.01 level of

significance.

**Question 5**

With

the growth of internet service providers, a researcher decides to

examine whether there is a correlation between cost of internet service

per month and degree of customer satisfaction (higher scores mean high

satisfaction). The researcher only includes programs with comparable

types of services. Calculate the Pearson’s correlation coefficient for

the dataset below and interpret what that means.

**Question 6**

You

are in the market for a new car and you are analyzing some data you

collected in your research. You note the mileage on a used car and its

selling price. Calculate the Pearson’s correlation coefficient between

mileage and price below and interpret what that means.

**Question 7**

Choose the value of the Pearson’s Correlation Coefficient (r) that best describes the two plots.

**Question 8**

Choose the value of the Pearson’s Correlation Coefficient (r) that best describes the two plots.