Exam 11: Analysis of Quantitative Data

Define the following terms -pie chart

Define the following terms -Type II error

Define the following terms -possible code cleaning

Define the following terms -multimodal

Fatima Fashionista wears a size 2 blazer.She went to her favourite clothing store and found that the mean size of the store's stock of blazers is a size 10 with a standard deviation of 4 sizes.What is her z-score in the distribution of the store's blazers?

Describe three ways a researcher can display information about univariate statistics.

Calculate the median for the following six shoe sizes: 9,10,10,8,12,11.

Define the following terms -direct entry method

You discover that the years of marriage before a divorce for nine whites and nine nonwhites are as follows: Whites 12,1,8,9,10,17,3,6,6 Non-Whites 1,9,15,18,11,13,14,7,3 Which statement about this data is true?

If the true situation in the world is that there is no causal relationship,but a researcher states that there is a causal relationship,what error occurs?

Usually,when constructing a scattergram,the __________ goes on the X axis and the __________ goes on the Y axis.

Refer to the information in the following table when answering questions 18 to 26: $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Annual Family Income and Education }$ $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { 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 \ 12,000 11 Stand Dev. \ 8,000 3 \ 2,000 6 \ 3,000 1.0 (N) (300) (300) (300) $\quad$$\quad$$\quad$$\quad$$\text { * } 4 \text { yrs college }=16 \text { yrs; masters } / \text { law degrees }=18 \mathrm{yrs} ; \mathrm{PhD} / \mathrm{MD} \text { degrees }=20 \mathrm{yrs} \text {. }$ -Which neighbourhood(s)has the highest number of families with the lowest incomes? $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { Annual Family Income and Education }$ $\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\quad$$\text { 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 \ 12,000 11 Stand Dev. \ 8,000 3 \ 2,000 6 \ 3,000 1.0 (N) (300) (300) (300) $\quad$$\quad$$\quad$$\quad$$\text { * } 4 \text { yrs college }=16 \text { yrs; masters } / \text { law degrees }=18 \mathrm{yrs} ; \mathrm{PhD} / \mathrm{MD} \text { degrees }=20 \mathrm{yrs} \text {. }$

What are two ways in which statistical relationships can be described? Provide an example for each one.

All the sales representatives at Acadia Insurance are female,and their mean annual salary is $60,000 with a standard deviation of $5000.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?

Define the following terms -frequency distribution

Which of the following cannot be learned from a scattergram?

Define the following terms -codebook

Calculate the mode for the following six shoe sizes: 9,10,10,8,12,11.

Define the following terms -contingency table

Define the following terms -standard deviation