A marriage counselor is interested in the proportion of clients she counsels who stay married. Define the following in terms of the study. Give examples where appropriate. Part (a) The population The population is a group of clients of this counselor. The population is all of the clients of this counselor. The population is all of the clients of this counselor who stay married. O The population is all couples in marriage counseling.
Part (b) The sample The sample is a group of clients of all marriage counselors. The sample is all of the clients of this counselor who stay married. The sample is a group of clients of this marriage counselor. O The sample is all of the clients of this marriage counselor
Part (c) The parameter O The parameter is the proportion of a sample of clients of any marriage counselor who stay married. O The parameter is the proportion of all of this counselor's clients who stay married. The parameter is the proportion of all clients of any marriage counselor who stay married. The parameter is the proportion of the sample of this counselor's clients who stay married.
Part (d) The statistic O The statistic is the proportion of the sample of this counselor's clients who stay married. The statistic is the proportion of all of this counselor's clients who stay married. O The statistic is the proportion of all clients of any marriage counselor who stay married. The statistic is the proportion of a sample of clients of any marriage counselor who stay married.
Part (e) The variable O The variable is the number of clients of this counselor who stay married. O The variable is the proportion clients of this counselor who stay married. O The variable is the mean length of the clients' marriages. O The variable is the number of clients of this counselor.
Part (f) The data O Examples: married for 2 years, married for 4 years O Examples: 3 couples, 7 couples O Examples: yes (stayed married), no (did not stay married) O Examples: 6 months of counseling. 1 year of counseling