Week 1 Test - Attempt 1

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School

American Military University *

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Course

302

Subject

Statistics

Date

Jan 9, 2024

Type

pdf

Pages

Uploaded by AMANDALCOURTNEY96

Week 1 Test - Results Attempt 1 of 2 Written Nov 13, 2023 2:55 AM - Nov 13, 2023 3:06 AM Attempt Score 18 /20 -90 % Overall Grade (Highest Attempt) 18 /20-90 % Question 1 1/ 1 point "Number of times per week" is what type of data in the scenario? A study was done to determine the age, the number of times per week, and the duration (amount of time) of residents using a local gym in San Antonio, Texas. The first car in the parking lot was selected randomly, and then the resident of every eighth car in the lot around the gym was interviewed. () Qualitative \/C‘ffi) Quantitative Discrete ) Quantitative Continuous Question 2 1/ 1 point

What is the sampling method used in the following scenario? A teacher wants to know if her students are doing homework, so she randomly selects rows one and four and then calls on all students in row one and all students in row four to present the solutions to homework problems to the class. () convenience () stratified ¢<‘> cluster > simple random () systematic Question 3 1/ 1 point What kind of data is "the colors of the cars around the gym"; in the scenario? A study was done to determine the age, the number of times per week, and the duration (amount of time) of residents using a local gym in San Antonio, Texas. The first car in the parking lot was selected randomly, and then the resident of every eighth car in the lot around the gym was interviewed. () Quantitative Discrete ) Quantitative Continuous v( ) Qualitative Question 4 1/ 1 point What is the sampling method used in the following scenario? The barista at a local Starbucks wants to determine what proportion of the coffee users are teenagers. The barista has a tally sheet on which she

marks whether the coffee order is for a teenager or adult. She records this data for every fifth patron who orders coffee. ¢<“> systematic ‘> cluster ) convenience > stratified () simple random Question 5 1/ 1 point Duration (amount of time) is what type of data in the scenario? A study was done to determine the age, the number of times per week, and the duration (amount of time) of residents using a local gym in San Antonio, Texas. The first car in the parking lot was selected randomly, and then the resident of every eighth car in the lot around the gym was interviewed. () Qualitative ¢<> Quantitative Continuous ) Quantitative Disrete Question 6 1/ 1 point An APU instructor is interested in the mean number of days an APU statistic students are absent from class during a quarter. X = number of days an APU statistic students are absent from class during a qguarter. In this case, X is an example of :

> data ~)a statistic () population v )a variable Question 7 0/ 1 point A Priest is interested in the proportion of couples who stay married after he marries them. lIdentify the sample: % () all the couples the priest marriages = ()2 subgroup of couples the priest marriages ) the proportion of the sample of the priest's couples who stay married () the proportion of all couples who stay married Question 8 1/ 1 point A local polling chapter is interested in the mean age of people who voted in the last election. They want to use this information to help get more people of all ages out to vote. Identify the sample. ) the population mean age of people who voted v )a subgroup of these voters () all people who have voted > the sample mean age of people who voted in the last election

Question 9 1/ 1 point 80 part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: Part-time Student Course Loads C lati # of Relative Hmd ? Ve Frequency Relative Courses Frequency Frequency 1 36 2 24 0.30 3 20 Answer the following two questions: What percent of students take exactly three courses? Round to a whole number. Do not include any decimals. % What percent of students take one or three courses? Round to a whole nhumber. Do not include any decimals.

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