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# If population A has a larger standard deviation than population B, which of the following is NOT true?

If population A has a larger standard deviation than population B, which of the following is NOT true?

- If population A has a larger standard deviation than population B, which of the following is NOT true? a. Population B has a smaller variance than population A. b. The mean of a sample of 20 from population A has a larger standard deviation than the mean of a sample of 20 from population B. c. A typical observation from population A will be farther from the mean of population A than a typical observation from B will be from the mean of population B. d. The mean of a sample from population A will on average be larger than the mean of a sample from population B. e. none of the above
- An inspector needs to learn if customers are getting fewer ounces of a soft drink than the 28 ounces stated on the label. After she collects data from a sample of bottles, she is going to conduct a test of a hypothesis. She should use a. a two tailed test. b. a one tailed test with an alternative to the right. c. a one tailed test with an alternative to the left. d. either a one or a two
- The manufacturer of Anthony Bigâ€™s exercise equipment is interested in the relationship between the number of months (X) since the equipment was purchased by a customer and the number of hours (Y) the customer used the equipment last week. The result was the regression equation Y = 12 – 0.5X. The number 0.5 in the equation means that the average customer a. used the equipment for 30 minutes last week. b. who has owned the equipment an extra month used the equipment 30 minutes less last week than the average customer who has owned it one month less. c. who just bought the equipment used it 30 minutes last week. d. bought the equipment one-half month ago.
- A researcher is studying students in college in California. She takes a sample of 400 students from 10 colleges. The average age of all college students in California is a. a statistic. b. a parameter. c. the median. d. a population. e. none of the abov