Statistics Homework: Sampling and Hypothesis Testing

This document presents solutions to a statistics homework assignment. The solutions cover various statistical concepts, including the application of chi-square tests, null and alternative hypotheses, sampling techniques (stratified, convenience, systematic, purposive), and inferential statistics. The assignment addresses questions related to data analysis, hypothesis testing, and the interpretation of statistical results. Specific answers are provided for multiple-choice questions, short-answer prompts, and problem-solving scenarios. The document offers a comprehensive overview of the topics, providing valuable insights into the practical application of statistical methods and principles. Desklib offers this and many other solved assignments for students.

1.
5.40.18: Answer: Yes
5.40.27: Answer: Occasionally
5.40.39: Answer: Yes
5.43.21: Answer: 3-6
5.43.23 (1): Answer:
 Clearly defined goal
 Positive image of company to my friends and family
 Working with new people
 Possibility to work from home
 Possibility to learn new skills
 Travel allowance
 Long holidays
 Retirement benefits
 Working with new people
 Possibility to solve customer’s problems
5.43.23: Answer: Occasionally
5.43.24: Answer: Yes
5.43.37: Answer:
 Inferential Statistics
 Inferential Statistics
5.43.38 (1): Answer: Self-selection
5.46.38: Answer: Purposive
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2.
5.49.58: Answer: Dept. A: 15, Dept. B: 40, Dept. B: 45, Dept. D: 20
5.49.59 (1): Answer: Stratified
5.49.59: Answer: Convenience
5.50.00: Answer: Systematic
3.
5.53.56: Answer: All the students
5.53.57: Answer: The null hypothesis is false but is accepted
5.53.57 (1): Answer: 20.090
5.53.57: Answer: George conducted a census of all students present in the library
5.53.59: Answer: 32.000
4.
5.57.15: Answers:
: If the chi-square value calculated for this test is more than 21.064, then the null hypothesis
should be accepted.
: If the chi-square value calculated for this test is less than 2.706, then alternate hypothesis
should be accepted.
5.57.16: Answers:
: H0 There are significant differences in the numbers of consumers selecting each soft drink.
: 60
5.57.17 (1): Answer: 8.067
5.57.17: Answers:
: 13.388
: 5.400
5.57.18: Answers: Purposive
5.
6.01.37: Answers:
:H0 There are significant differences in the numbers of consumers selecting each soft drink.
: 60
6.01.38 (1): Answers: 5.400
2

6.01.38: Answer: 13.388
6.01.40 (1): Answers:
: H0: There is a significant difference in the distribution of answers from male and female
entrepreneurs.
: 105
6.01.40 (2): Answer: 13.277
6.2.41: Answer: 2.4
6.01.43: Answer: 12.665
6.01.44 (1): Answer: 4.5
6.01.45: Answer:
: 2nd option
: 3rd option
6.01.47: Answer: 0.766
6.01.48: Answer: Employee 6
6.01.49 (3): Answer: Employee 9
6.01.49: Answer: Employee 5
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