A level of : a) parameter   b) statistic    c) factor  .. is ... a) a convenient value for rounding a statistics    b) a measurement of the parameter on a group of subjects     c) a value of the factor  ...used to... a) graph the distribution of the statistics   b)convert a measurement from ratio to ordinal scale    c) create a group or treatment conditions

A sample was taken of the verbal test scores of 20 applicants to graduate school at a large midwestern university. Below are the scores. For convenience, the data are ordered. 280 310 340 350 380 400 420 420 420 430 510 510 520 520 600 610 670 720 750 770 (All answers should be exact calculations.)a) The median is .b) The first quartile is .c) The third quartile is .d) The IQR is e) The lower fence is .f) The upper fence is .

Consider the following two distributions of total PAC contributions given to five members of Congress: Distribution 1:$20,000, $40,000, $60,000, $80,000, $100,000 Distribution 2:$20,000, $40,000, $60,000, $80,000, $1,000,000 Compute the mode(s), median, and mean for each. Verbally interpret each figure, and compare the two distributions.

Determine the measurement scale (nominal, ordinal, interval or ratio) for each of the following data sets: {no explanation is required}:       I. Majors of randomly selected students at college       II.  Heights of men entering the Navy     III.  Letter grades on students’ English essays     IV.   Size of T-shirts on sale : extra-small, small, medium, large and so forth       V.  Number of people per household reported on the National Census     VI. Amount of weight gained by a group of college freshman   VII.   Jersey numbers of players on the lacrosse team   VIII.  Titles that precede people’s names : Dr., Mrs., Mr., Ms., and so forth     IX.  Client satisfaction survey responses: Poor, Average, Good and Excellent        X.   The number of pounds of snack food eaten by an individual in his lifetime

12)

. Which type of statistical information or graph would be most helpful in determining whether the baseline characteristics of a study group are well balanced?A) A bar chartB) Descriptive staticsC) A box-whisker plotD) A flow chart

The Bar graph below describes the scores of a group of students on a 10-point math quiz Frequency 10 9 8 7 6 2 1 0 Ill.... 6 7 3 4 Quiz Scores 5 Score a) How many students took the math quiz? 8 9 10 b) What percentage of the students scored 3 points (round to one decimal place)? c) If a grade of 6 or more was needed to pass the quiz what percentage of the student's passed? (Round your answer to the nearest tenth of a percent.) % %

The association between occurrence of convictions and family income was examined by following a cohort of 395 boys for about 20 years, starting at age 8-9. The following table shows number of convictions with respect to three family income brackets: a)What type of table is this? b) Display the same data using a mosaic plot. c) What type of variable is income level? How should this affect your graph? d) By viewing the table and the graph, describe any apparent association between income and later convictions. e) Does the table or the graph better reveal the association between convictions and income? Pls help and explain all parts correctly, thank you