Why it is important to know how the sample was selected when drawing conclusions about the survey?

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Answer 1

Question

Chapter 8, Problem 8.39E

a.

To determine

To explain: Why it is important to know how the sample was selected when drawing conclusions about the survey?

b.

To determine

To explain: Whether the methodology section adequately explains how the samples was selected and give what information is lacking.

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The table below indicates the number of years of experience of a sample of employees who work on a particular production line and the corresponding number of units of a good that each employee produced last month. Years of Experience (x) Number of Goods (y) 11 63 5 57 1 48 4 54 45 3 51 Q.1.1 By completing the table below and then applying the relevant formulae, determine the line of best fit for this bivariate data set. Do NOT change the units for the variables. X y X2 xy Ex= Ey= EX2 EXY= Q.1.2 Estimate the number of units of the good that would have been produced last month by an employee with 8 years of experience. Q.1.3 Using your calculator, determine the coefficient of correlation for the data set. Interpret your answer. Q.1.4 Compute the coefficient of determination for the data set. Interpret your answer.

Q.3.2 A sample of consumers was asked to name their favourite fruit. The results regarding the popularity of the different fruits are given in the following table. Type of Fruit Number of Consumers Banana 25 Apple 20 Orange 5 TOTAL 50 Draw a bar chart to graphically illustrate the results given in the table.

Q.2.3 The probability that a randomly selected employee of Company Z is female is 0.75. The probability that an employee of the same company works in the Production department, given that the employee is female, is 0.25. What is the probability that a randomly selected employee of the company will be female and will work in the Production department? Q.2.4 There are twelve (12) teams participating in a pub quiz. What is the probability of correctly predicting the top three teams at the end of the competition, in the correct order? Give your final answer as a fraction in its simplest form.

Answer 2

Question

Chapter 8, Problem 8.39E

a.

To determine

To explain: Why it is important to know how the sample was selected when drawing conclusions about the survey?

b.

To determine

To explain: Whether the methodology section adequately explains how the samples was selected and give what information is lacking.

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Answer 3

Question

Chapter 8, Problem 8.39E

a.

To determine

To explain: Why it is important to know how the sample was selected when drawing conclusions about the survey?

b.

To determine

To explain: Whether the methodology section adequately explains how the samples was selected and give what information is lacking.

Expert Solution & Answer

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Answer 4

Question

Chapter 8, Problem 8.39E

a.

To determine

To explain: Why it is important to know how the sample was selected when drawing conclusions about the survey?

b.

To determine

To explain: Whether the methodology section adequately explains how the samples was selected and give what information is lacking.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 5

Chapter 8, Problem 8.39E

a.

To determine

To explain: Why it is important to know how the sample was selected when drawing conclusions about the survey?

b.

To determine

To explain: Whether the methodology section adequately explains how the samples was selected and give what information is lacking.

Answer 6

Chapter 8, Problem 8.39E

a.

To determine

To explain: Why it is important to know how the sample was selected when drawing conclusions about the survey?

Answer 7

Chapter 8, Problem 8.39E

a.

To determine

To explain: Why it is important to know how the sample was selected when drawing conclusions about the survey?

Answer 8

b.

To determine

To explain: Whether the methodology section adequately explains how the samples was selected and give what information is lacking.

Answer 9

b.

To determine

To explain: Whether the methodology section adequately explains how the samples was selected and give what information is lacking.

Answer 10

Expert Solution & Answer

Answer 11

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Answer 12

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Answer 13

Ch. 8.1 - Prob. 1AYK Ch. 8.1 - Prob. 2AYK Ch. 8.1 - Prob. 3AYK Ch. 8.2 - Prob. 4AYK Ch. 8.2 - Prob. 5AYK Ch. 8.3 - Prob. 6AYK Ch. 8.3 - Prob. 7AYK Ch. 8.3 - Prob. 8AYK Ch. 8.4 - Prob. 9AYK Ch. 8.4 - Prob. 10AYK

Why it is important to know how the sample was selected when drawing conclusions about the survey?

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To explain: Why it is important to know how the sample was selected when drawing conclusions about the survey?

To explain: Whether the methodology section adequately explains how the samples was selected and give what information is lacking.

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