Question

suppose a survey of 915 major appliance shoppers found that 25% bought extended warranties. which part of the survey represents the descriptive branch of statistics? make an inference based on the results of the survey. choose the best statement of the descriptive statistic in the problem. a. about 25% of major-appliance shoppers buy extended warranties. b. 25% of major appliance shoppers in the sample bought extended warranties. c. there is no association between major-appliance shoppers and buying extended warranties. d. 915 major-appliance shoppers were surveyed.

Explanation:

Descriptive statistics summarize or describe characteristics of a sample or data set. Option B describes the percentage (25%) of the sample (915 major - appliance shoppers surveyed) that bought extended warranties, which is a descriptive statistic. Option A is an inference about the population, Option C is a statement about association (not descriptive), and Option D just states the sample size without describing a characteristic related to the variable (buying extended warranties).

Answer:

B. 25% of major - appliance shoppers in the sample bought extended warranties.