Use the information in Table 12.2 to answer the following questions. \[\text { Table } 12.2\] \[\begin{array}{c} \begin{array} { l | cccccccc } \text { Amount of } & &&&&{ \text { Average Hours of TV Watched Per Week } } \\ \text { Formal Education } & 0 - 5 & 6 - 10 & 11 - 15 & 16 - 20 & 21 - 25 & 26 - 30 & \text { Over 30 } & \text { TOTAL } \\ \hline \text { 0-8 Years } & 0 \% & 0 & 5 & 10 & 15 & 20 & 50 & 100 \% \\ \text { 9-11 Years } & 0 \% & 5 & 10 & 15 & 20 & 20 & 30 & 100 \% \\ \text { 12, HS Grad } & 0 \% & 10 & 10 & 10 & 30 & 20 & 20 & 100 \% \\ \text { 13-15 Years } & 10 \% & 10 & 10 & 20 & 25 & 15 & 10 & 100 \% \\ \text { 16, BA Degree } & 20 \% & 20 & 15 & 15 & 15 & 10 & 5 & 100 \% \\ \text { 17-18 Years } & 30 \% & 20 & 20 & 20 & 10 & 0 & 0 & 100 \% \\ \text { 19 or More } & 50 \% & 30 & 10 & 10 & 0 & 0 & 0 & 100 \% \end{array} \end{array}\] -Which of the following is FALSE based upon the table?

A) A majority 50%) of people with at least a BA degree watch at least 20 hours of television per week. B) The more education a person has, the less likely he or she is to watch television. C) About 80 percent of the people with advanced degrees over 18 years of education) watch 10 hours or fewer hours of television per week. D) A majority 50%) of people with 8 or fewer years of education watch at least 25 hours of television per week. A) A majority 50%) of people with at least a BA degree watch at least 20 hours of television per week. B) The more education a person has, the less likely he or she is to watch television. C) About 80 percent of the people with advanced degrees over 18 years of education) watch 10 hours or fewer hours of television per week. D) A majority 50%) of people with 8 or fewer years of education watch at least 25 hours of television per week.

Refer to the information provided in Table 12.3 below to answer the questions that follow. Table 12.3: Annual Family Income and Education* Statistics for Three Neighborhoods \[\begin{array} { l | llllll } & { \text { GLENBROOK } } && { \text { MEADOWBROOK } } && { \text { ELMBROOK } } \\ & \text { Income } & \text { Education } & \text { Income } & \text { Education } & \text { Income } & \text { Education } \\ \hline \text { Mean } & \$ 78,000 & 17 \text { Years } & \$ 28,000 & 15 \text { Years } & \$ 16,000 & 11 \text { Years } \\ \text { Median } & \$ 27,000 & 18 & \$ 28,000 & 16 & \$ 18,000 & 11 \\ \text { Mode } & \$ 26,000 & 20 & \$ 28,000 & 11 & \$ 14,000 & 11 \\ \text { Stand Dev. } & \$ 8,000 & 3 & \$ 2,000 & 6 & \$ 3,000 & 1.0 \\ \text { (N) } & ( 300 ) & & ( 300 ) & & ( 300 ) & \end{array}\] *4 yrs college = 16 yrs; masters/law degrees = 18 yrs; Ph.D/MD degrees = 20 yrs. -Which neighborhood has the greatest variation in the amount of education people have?

A) Glenbrook B) Meadowbrook C) Elmbrook D) The neighborhoods are equally distributed. A) Glenbrook B) Meadowbrook C) Elmbrook D) The neighborhoods are equally distributed.

Exam 12: Analysis of Quantitative Data

Use the information in Table 12.2 to answer the following questions. $\text { Table } 12.2$ Amount of Average Hours of TV Watched Per Week Formal Education 0-5 6-10 11-15 16-20 21-25 26-30 Over 30 TOTAL 0-8 Years 0\% 0 5 10 15 20 50 100\% 9-11 Years 0\% 5 10 15 20 20 30 100\% 12, HS Grad 0\% 10 10 10 30 20 20 100\% 13-15 Years 10\% 10 10 20 25 15 10 100\% 16, BA Degree 20\% 20 15 15 15 10 5 100\% 17-18 Years 30\% 20 20 20 10 0 0 100\% 19 or More 50\% 30 10 10 0 0 0 100\% -Which of the following is FALSE based upon the table?

(Multiple Choice)

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Question 41

What three features of a relationship between two variables can be seen from a scattergram?

(Short Answer)

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Question 42

All the sales representatives at Allcity Insurance are female, and their mean annual salary is $60,000 with a standard deviation of $5,000. All customer account managers are male and they have a mean salary of $80,000 with a standard deviation of $15,000. Heather knows she is one standard deviation above the mean of the sales representatives. She wants to transfer to become the first female customer account manager and will begin at her same salary. After she transfers, compared to the customer account managers her salary will be at what z-score?

(Multiple Choice)

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Question 43

Connie and Tom both got 75% correct on the research methods final exam. The mean for all women who took the test was 80% and the median was 75% with a standard deviation of 5%. The mean for the men was 65% correct and the median was 65% with a standard deviation of 10%. What is the z-score for Connie and Tom relative to those of their own sex?

(Multiple Choice)

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Question 44

Describe three ways a researcher can summarize the central tendency of a variable. Explain how each measure of central tendency is calculated and is different from other measures of central tendency.

(Essay)

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Question 45

Why is knowing the variability ex. standard deviation) of a variable just as important as knowing its central tendency?

(Short Answer)

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Question 46

You find a positive relationship between mothers' education and respondents' income at age 40. The relationship remained after controlling for family social class. This means

(Multiple Choice)

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Question 47

Refer to the information provided in Table 12.3 below to answer the questions that follow. Table 12.3: Annual Family Income and Education* Statistics for Three Neighborhoods GLENBROOK MEADOWBROOK ELMBROOK Income Education Income Education Income Education Mean \ 78,000 17 Years \ 28,000 15 Years \ 16,000 11 Years Median \ 27,000 18 \ 28,000 16 \ 18,000 11 Mode \ 26,000 20 \ 28,000 11 \ 14,000 11 Stand Dev. \ 8,000 3 \ 2,000 6 \ 3,000 1.0 (N) (300) (300) (300) *4 yrs college = 16 yrs; masters/law degrees = 18 yrs; Ph.D/MD degrees = 20 yrs. -Which neighborhood has the greatest variation in the amount of education people have?

(Multiple Choice)

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Question 48

A researcher wants to express the middle of a distribution of numbers, such that half the cases are higher and half lower than a value. What statistical measure should he use?

(Multiple Choice)

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Question 49

What three features of a relationship between two variables can be seen from a scattergram?

Describe three ways a researcher can summarize the central tendency of a variable. Explain how each measure of central tendency is calculated and is different from other measures of central tendency.

Why is knowing the variability ex. standard deviation) of a variable just as important as knowing its central tendency?

You find a positive relationship between mothers' education and respondents' income at age 40. The relationship remained after controlling for family social class. This means

A researcher wants to express the middle of a distribution of numbers, such that half the cases are higher and half lower than a value. What statistical measure should he use?

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