Q2 (a) List all possible simple random samples of size n= 2 that can be selected from the population (0, 1, 2, 3, 4}. Calculate V(x) for the sample. A dentist interested in the effectiveness of a new toothpaste. A group of N= 1000 school children participated in this study. Pre-study records showed that there is an average of 2.2 cavities every six months for the group. After three months of the study, the dentist sampled n= 10 children to determine how they are progressing on the new toothpaste. The data can be shown in Table Q2(b). Construct a 95% confidence interval for x. (b) Table Q2(b) Number of cavities in the three-month period Children 1 4 3 2 4 3 5 6. 7 3 8 4 9. 1 10 1 (c) The Fish and Game Department of a state was concerned about the direction of its future hunting programs. To provide for a greater potential for future hunting, the department wanted to determine the proportion of hunters seeking any type of game bird. A simple random sample of n= 1000 of the N= 99,000 licensed hunters was obtained. Suppose 430 indicated that they hunted game birds, Construct a 95% sonfidence interval for n.

Q2 (a) List all possible simple random samples of size n= 2 that can be selected from the population (0, 1, 2, 3, 4}. Calculate V(x) for the sample. A dentist interested in the effectiveness of a new toothpaste. A group of N= 1000 school children participated in this study. Pre-study records showed that there is an average of 2.2 cavities every six months for the group. After three months of the study, the dentist sampled n= 10 children to determine how they are progressing on the new toothpaste. The data can be shown in Table Q2(b). Construct a 95% confidence interval for x. (b) Table Q2(b) Number of cavities in the three-month period Children 1 4 3 2 4 3 5 6. 7 3 8 4 9. 1 10 1 (c) The Fish and Game Department of a state was concerned about the direction of its future hunting programs. To provide for a greater potential for future hunting, the department wanted to determine the proportion of hunters seeking any type of game bird. A simple random sample of n= 1000 of the N= 99,000 licensed hunters was obtained. Suppose 430 indicated that they hunted game birds, Construct a 95% sonfidence interval for n.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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