Policters regularly conduct opinion polls to determine the popularity rating of the curtent prosident fluppose a poil is to be conducted lomorow in which 2.500 individuan will be asked whether the president doing a good or bad job The 2500 individuals will be selected try random digit telephone dialing and asked the question over the phone Complete parts a through 1 A. The variable is quantitative variabin. Hs values can be expressed on a naturaly occuring numencal scale The variable is is qualitative variable its values cannot be expressed on a naturally occuring numerical scale The vanable is qualitative variable its values can be expressed on a naturally occurring numerical scisle The variable in quantitative variable. Its values cannot be expressed on a naturally occurring numerical scahe C. What is the sample? All poople who do not respond to the survey All poople in the country The 2500 individuals surveyed All poople who respond that the president is doing a good job d. What is the interence of interest to the poltater? A. Estimate the number of poople surveyed 11. Estimate the number at people in the country C. Estimate the number of people who will respond to the survey D. Estimate the proportion of all citizens who believe the president is doing a good job

Question

Policters regularly conduct opinion polls to determine the popularity rating of the curtent prosident fluppose a poil is to be conducted lomorow in which 2.500 individuan will be asked whether the president doing a good or bad job The 2500 individuals will be selected try random digit telephone dialing and asked the question over the phone Complete parts a through 1 A. The variable is quantitative variabin. Hs values can be expressed on a naturaly occuring numencal scale The variable is is qualitative variable its values cannot be expressed on a naturally occuring numerical scale The vanable is qualitative variable its values can be expressed on a naturally occurring numerical scisle The variable in quantitative variable. Its values cannot be expressed on a naturally occurring numerical scahe C. What is the sample? All poople who do not respond to the survey All poople in the country The 2500 individuals surveyed All poople who respond that the president is doing a good job d. What is the interence of interest to the poltater? A. Estimate the number of poople surveyed 11. Estimate the number at people in the country C. Estimate the number of people who will respond to the survey D. Estimate the proportion of all citizens who believe the president is doing a good job

Answer 1

a. The variable is a qualitative variable, its values cannot be expressed on a naturally occurring numerical scale.c. The sample is the 2500 individuals surveyed.d. The inference of interest to the pollster is to estimate the proportion of all citizens who believe the president is doing a good job.

Answer 2

## Step 1The variable in a study is the characteristic that is being measured or observed. In this case, the variable is the opinion of the individuals on whether the president is doing a good or bad job. This is a qualitative variable because it describes a category or quality, not a numerical value.## Step 2The sample in a study is the subset of the population that is being studied. In this case, the sample is the 2500 individuals who will be surveyed. They are a subset of the entire population of the country.## Step 3The inference of interest to the pollster is the conclusion that the pollster wants to draw from the study. In this case, the pollster wants to estimate the proportion of all citizens who believe the president is doing a good job.

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