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Determine whether the variable is qualitative or quantitative. Explain your reasoning. Street name of address Is the variable qualitative or quantitative? Explain. O A. The variable is quantitative because street name is found by measuring or counting. O B. The variable is qualitative because street name describes an attribute or characteristic. 0 C. The variable is quantitative because street name describes an attribute or characteristic. 0 D. The variable is qualitative because street name is found by measuring or counting. Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain. In 1965, researchers used random digit dialing to call 800 people and ask what obstacles kept them from voting. What type of sampling was used? 0 A. Convenience sampling was used, since the 800 phone numbers that were easiest to reach were selected. 0 E. Cluster sampling was used, since the phone numbers were divided into groups, several groups were selected, and each number in those groups was called. 0 C. Systematic sampling was used, since phone numbers were selected from a list using a xed interval between phone numbers. 0 D. Simple random sampling was used, since each number had an equal chance of being dialed, so all samples of 800 phone numbers had an equal chance of being selected. What potential sources of bias were present, if any? Select all that apply. :I A. Individuals may have refused to participate in the sample. This may have made the sample less representative of the population. :I B. Individuals may have not been available when the researchers were calling. Those individuals that were available may have not been representative ofthe population. :I C. No one talks honestly about their insurance needs with people they do not know because it is too personal a subject. This may have led to untrue responses to the survey question. :I D. Telephone sampling only includes people who had telephones. People who owned telephones may have been older or wealthier on average. and may not have been representative of the entire population. \fA company has been rating television programs for more than 60 years. It uses several sampling procedures, but its main one is to track the viewing patterns of 20,000 households. These contain more than 45,000 people and are chosen to form a cross section of the overall population. The households represent various locations, ethnic groups, and income brackets. The data gathered from the sample of 20,000 households are used to draw inferences about the population of all households in the United States. Complete parts (a) and (b) below. What strata are used in the sample? Choose the correct answer below. 0 A. The television ratings 0 B. The various sampling procedures and viewing patterns 0 C. The number of households and people that are chosen 0 D. The various locations, ethnic groups, and income brackets that are represented Why is it important to have a stratied sample for these ratings? Choose the correct answer below. 0 A. Stratied sampling ensures that each segment of the population is represented. O B. Stratied sampling ensures that the television ratings are accurate. 0 C. Stratied sampling ensures that only households in the US. are sampled. O D. Stratied sampling ensures that all of the members of one or more groups are used. What is the difference between a census and a sampling? ". . . . Choose the correct answer below. A. Both a census and a sampling include the entire population, but a census orders the population according to some list. O B. A census splits the population into two or more groups and includes every member of one of those groups. A sampling only includes some members of that group. O C. A sampling includes the entire population. A census includes only part of the population. O D. A census includes the entire population. A sampling includes only part of the population.Determine whether the underlined value is a parameter or a statistic. The average score for a class of 28 students taking a calculus midterm exam was 72%. Is the value a parameter or a statistic? O Statistic 0 Parameter