2. The Fruit Zoot company claims a packet of Apple Zooties contains an average of 12 fruit snacks, but a local pediatrician thinks the true average is different. He takes a random sample of 15 packets and find an average of 10 fruit snacks with a standard deviation of 1.5. Assume the population is normally distributed with an unknown variance. a) Conduct a hypothesis test for the pediatrician's claim. Use the rejection region approach. b) Construct a 95% confidence interval for the true mean number of fruit snacks. Compare this interval to your conclusion to the test in part a.

2. The Fruit Zoot company claims a packet of Apple Zooties contains an average of 12 fruit snacks, but a local pediatrician thinks the true average is different. He takes a random sample of 15 packets and find an average of 10 fruit snacks with a standard deviation of 1.5. Assume the population is normally distributed with an unknown variance. a) Conduct a hypothesis test for the pediatrician's claim. Use the rejection region approach. b) Construct a 95% confidence interval for the true mean number of fruit snacks. Compare this interval to your conclusion to the test in part a.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 2E

See similar textbooks