%20No.1%20Math100.pdf 1/5 - 100% + Use the following data for Questions No. 1-4. The admissions office of a university selected 50 freshmen to determine whether the university was their first choice. It turned out that 72% of those freshmen said this university was their first choice. (1) Describe the underlying population and the sample of interest. Population: Samples (A) all students in the university the 50 chosen freshanen (B) all freshmen students in the university the 50 chosen freshmen (C) all students all freshmen in the university (D) the 50 chosen freshmen all frishmen in the university (2) What is the variable of interest? Describe the type and the level of measurement of the variable. Variables Type: Level of Mensurement (A) 1" Choice of College Qualitative Nominal (B) 1" Choice of College Qualitative Ordinal (C) 1" Choice of College Quantitative Interval (D) 1" Choice of College Quantitative Ratio (3) Which of the following statement(s) is (are) true statement(s)? I. 50 is a statistic: 72% is a parameter II. Both 50 and 7259 are parameters III. Only 7256 is statistic (A) Ionly (B) II only (C) III only (D) II and ill (4) Identify the type of sampling used when a sample is obtained as described. (1) A complete list of all freshmen is compiled and every 50th name is selected. (II) Asking 50 freshmen randomly selected by lottery ID numbers. (III) At a freshman club macting, a survey is conducted of all who attend. (A) (I) simple random sample (II) stratified sample (Ill) convenience sample (B) (!) systematic sample (1) simple random sample (III) convenience sample (I) simple random sample (1) self-selected sample (Ill) convenience sample (D) (I) systematic sample (II) stratified sample (III) non-responding sample (5) If all of the vabars in a data set is increased by 10, Which of the following is not true? (A) The median is increased by 10. (B] The roan is increased by 10. (() The mid-range is lacreased by 10. (D) The interquartile range is increased by 10. 8 AONO.1720Math100.pat 2 /5 100% + II. Short-Answers-Instructions: Give a brief answer to each question with clear reasoning (1) Scores on a statistics teat have a mean of 75 and a standard deviation of 15. Is a score of 40 unusually low? why or why not? (2) When mithor Shere Hite wrote Women and Love: A Cultural Revolution in Pragress, she drew her conclusions based on 4500 replies that she received after mailing 100,000 questionaire to various women's group. Are her conclusions likely to be valid in the sense that they can be applied to the general population of all women? why or why not? (3) The third quartile of the SAT scores of 64 randomly selected hight school students was 650. How many of the students had SAT scores higher than 6507 (4). When the Indianapolis Colts recently won the Super Bowl, the numbers on the jerseys of the active players were 20, 41,50, 53, 79...., 10 (Listed in the alphabetical order of the player's names). Dom it make sense to calculate the mean of those numbers? why or why not? 8 A1%20No. 1%20Math100.pdf 2 /5 100% + H (5) If the mean weight of 12 students is 120.5/b. and the mean weight 8 of these students is 125 16., what is the mean weight for the remaining 4 students in the group