MATH302 - Week 1 Knowledge Check 1

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American Military University *

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302

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Statistics

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Feb 20, 2024

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pdf

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Uploaded by GrandSquid3781

Week 1 Knowledge Check Homework Practice Quest… Attempt 1 of 4 Written Jan 4, 2024 8:35 PM - Jan 4, 2024 9:15 PM Attempt Score 18 / 20 - 90 % Overall Grade (Highest Attempt) 19.67 / 20 - 98.33 % Question 1 1 / 1 point What is the sampling method used in the following scenario? The librarian at a public library wants to determine what proportion of the library users are children. The librarian has a tally sheet on which she marks whether books are checked out by an adult or a child. She records this data for every fourth patron who checks out books. Question 2 1 / 1 point A market researcher polled every tenth person who walks into a store. What type of sampling was used? systematic cluster convenience stratified simple random Cluster

Question 3 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 two and five and then calls on all students in row two and all students in row five to present the solutions to homework problems to the class. Question 4 1 / 1 point A group of test subjects is divided into twelve groups; then four of the groups are chosen at random. What type of sampling is used? Question 5 1 / 1 point Stratified Simple Random Systematic Convenience convenience stratified cluster simple random systematic Cluster Convenience Stratified Systematic Simple Random

A computer generates 100 random numbers, and 100 people whose names correspond with the numbers on the list are chosen. What type of sampling was used? Question 6 0 / 1 point A Lake Tahoe Community College instructor is interested in the mean number of days Lake Tahoe Community College math students are absent from class during a quarter. X = number of days a Lake Tahoe Community College math student is absent In this case, X is an example of : Question 7 1 / 1 point What is the term for a characteristic or attribute that can assume different values? Question 8 1 / 1 point Convenience Systematic Simple Random Stratified Cluster data a statistic population a variable exponent sample datum variable

Which of the following correctly describes the relationship between a sample and a population? Question 9 1 / 1 point Round the number 1599.666667 to the nearest hundredth. Answer: 1599.67 Question 10 1 / 1 point When collecting your data, you notice that your results are very different from your classmates. What should you do? Question 11 1 / 1 point A sample is: A sample is a group of populations that are subject to observation. A sample is a group of subjects selected from a population to be studied. A population and a sample are not related. A population is a group of samples that may or may not be included in a study Reevaluate your accuracy. Average your scores with the class mean. Nothing, it is perfectly fine to have different samples. a characteristic of interest for each person or thing in the population. the collection of all individuals, objects or measurements being studied. a number that is a property of the population. a portion of the population under study.

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