The marketing department of a sports supply store wants to estimate the percentage of adults in the town who belong to a gym.Which statement describes a method that will help the marketing department accurately estimate this percentage?A)Select the store’s first 20 customers every day for one week, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.”B)Take a random sample of adults at the local park, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.”C)Take a random sample of adults in the town, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.D)Take a random sample of the store’s adult customers, and ask what percentage of their friends belong to a gym. Calculate the mean of the responses.

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general 11 months ago 8566

A news reporter wants to estimate the percentage of registered voters who will vote for a particular candidate in an upcoming election. Which statement describes a method that will help him accurately estimate this percentage? A.) He could contact every resident in the town, ask whether the resident will vote for the particular candidate, and then calculate the percentage of residents who say they will vote for the particular candidate. B.)He could ask employees at the newspaper which candidate each will vote for, and then calculate the percentage who will vote for the particular candidate. C.)He could take a random sample of registered voters, and then calculate the percentage of the sample who will vote for the particular candidate. D.)He could ask his readers to respond to a survey that asks which candidate the reader will vote for and then calculate the percentage of people who say that they will vote for the particular candidate.

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general 11 months ago 9382

1. The lengths, in centimeters, of nine earthworms are shown below. 3, 4, 5, 5, 6, 7, 8, 9, 10 What is the median of the data? A)5 B)6 C)7 D)82. Which measure of central tendency is MOST EASILY affected by outliers?A) mean B) median C) mode D) IQR 3. The math test scores of Mrs. Hunter's class are shown below.48, 56, 68, 72, 72, 78, 78, 80, 82, 84, 88, 88, 88, 90, 94, 98, 100What is the range of the scores?A) 44 B) 52 C) 54 D) 624. The heights (in inches) of 13 plants are 6, 9, 10, 10, 10, 11, 11, 12, 12, 13, 14, 16, and 17.What is the interquartile range of this data set?A) 3.5 B) 6 C) 10.5 D) 11

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general 11 months ago 1460

A doctor's office mails a survey to each of its patients. The results of the survey are based off of the total number of patients. Which of the following could affect the outcome of their surveys? A.The results could be flawed because the sample population was too large. B.The results could be flawed due to a wide range of topics in the questions. C.The survey is biased because they are only asking patients. D.The results could be flawed due to non-response of patients.

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general 11 months ago 8388