The level of significance, null and alternative hypothesis.

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Answer 1

Question

Chapter 9.3, Problem 24P

(a)

To determine

The level of significance, null and alternative hypothesis.

(b)

To determine

To find: The sampling distribution that should be used and compute the value of the sample test statistic.

(c)

To determine

To find: The critical value of the test statistic and sketch the sampling distribution showing the critical region.

(d)

To determine

Whether we reject or fail to reject the null hypothesis and whether the data is statistically significant for a level of significance of 0.01.

(e)

To determine

The interpretation for the conclusion.

(f)

To determine

The comparison for our conclusion with the conclusion obtained from the P-value method.

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20 km, because GISS Worksheet 10 Jesse runs a small business selling and delivering mealie meal to the spaza shops. He charges a fixed rate of R80, 00 for delivery and then R15, 50 for each packet of mealle meal he delivers. The table below helps him to calculate what to charge his customers. 10 20 30 40 50 Packets of mealie meal (m) Total costs in Rands 80 235 390 545 700 855 (c) 10.1. Define the following terms: 10.1.1. Independent Variables 10.1.2. Dependent Variables 10.2. 10.3. 10.4. 10.5. Determine the independent and dependent variables. Are the variables in this scenario discrete or continuous values? Explain What shape do you expect the graph to be? Why? Draw a graph on the graph provided to represent the information in the table above. TOTAL COST OF PACKETS OF MEALIE MEAL 900 800 700 600 COST (R) 500 400 300 200 100 0 10 20 30 40 60 NUMBER OF PACKETS OF MEALIE MEAL

Let X be a random variable with support SX = {−3, 0.5, 3, −2.5, 3.5}. Part ofits probability mass function (PMF) is given bypX(−3) = 0.15, pX(−2.5) = 0.3, pX(3) = 0.2, pX(3.5) = 0.15.(a) Find pX(0.5).(b) Find the cumulative distribution function (CDF), FX(x), of X.1(c) Sketch the graph of FX(x).

Answer 2

Question

Chapter 9.3, Problem 24P

(a)

To determine

The level of significance, null and alternative hypothesis.

(b)

To determine

To find: The sampling distribution that should be used and compute the value of the sample test statistic.

(c)

To determine

To find: The critical value of the test statistic and sketch the sampling distribution showing the critical region.

(d)

To determine

Whether we reject or fail to reject the null hypothesis and whether the data is statistically significant for a level of significance of 0.01.

(e)

To determine

The interpretation for the conclusion.

(f)

To determine

The comparison for our conclusion with the conclusion obtained from the P-value method.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 9.3, Problem 24P

(a)

To determine

The level of significance, null and alternative hypothesis.

(b)

To determine

To find: The sampling distribution that should be used and compute the value of the sample test statistic.

(c)

To determine

To find: The critical value of the test statistic and sketch the sampling distribution showing the critical region.

(d)

To determine

Whether we reject or fail to reject the null hypothesis and whether the data is statistically significant for a level of significance of 0.01.

(e)

To determine

The interpretation for the conclusion.

(f)

To determine

The comparison for our conclusion with the conclusion obtained from the P-value method.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 9.3, Problem 24P

(a)

To determine

The level of significance, null and alternative hypothesis.

(b)

To determine

To find: The sampling distribution that should be used and compute the value of the sample test statistic.

(c)

To determine

To find: The critical value of the test statistic and sketch the sampling distribution showing the critical region.

(d)

To determine

Whether we reject or fail to reject the null hypothesis and whether the data is statistically significant for a level of significance of 0.01.

(e)

To determine

The interpretation for the conclusion.

(f)

To determine

The comparison for our conclusion with the conclusion obtained from the P-value method.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 9.3, Problem 24P

(a)

To determine

The level of significance, null and alternative hypothesis.

(b)

To determine

To find: The sampling distribution that should be used and compute the value of the sample test statistic.

(c)

To determine

To find: The critical value of the test statistic and sketch the sampling distribution showing the critical region.

(d)

To determine

Whether we reject or fail to reject the null hypothesis and whether the data is statistically significant for a level of significance of 0.01.

(e)

To determine

The interpretation for the conclusion.

(f)

To determine

The comparison for our conclusion with the conclusion obtained from the P-value method.

Answer 6

Chapter 9.3, Problem 24P

(a)

To determine

The level of significance, null and alternative hypothesis.

Answer 7

Chapter 9.3, Problem 24P

(a)

To determine

The level of significance, null and alternative hypothesis.

Answer 8

(b)

To determine

To find: The sampling distribution that should be used and compute the value of the sample test statistic.

Answer 9

(b)

To determine

To find: The sampling distribution that should be used and compute the value of the sample test statistic.

Answer 10

(c)

To determine

To find: The critical value of the test statistic and sketch the sampling distribution showing the critical region.

Answer 11

(c)

To determine

To find: The critical value of the test statistic and sketch the sampling distribution showing the critical region.

Answer 12

(d)

To determine

Whether we reject or fail to reject the null hypothesis and whether the data is statistically significant for a level of significance of 0.01.

Answer 13

(d)

To determine

Whether we reject or fail to reject the null hypothesis and whether the data is statistically significant for a level of significance of 0.01.

Answer 14

(e)

To determine

The interpretation for the conclusion.

Answer 15

(e)

To determine

The interpretation for the conclusion.

Answer 16

(f)

To determine

The comparison for our conclusion with the conclusion obtained from the P-value method.

Answer 17

(f)

To determine

The comparison for our conclusion with the conclusion obtained from the P-value method.

Answer 18

Expert Solution & Answer

Answer 19

Expert Solution & Answer

Answer 20

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Answer 21

The level of significance, null and alternative hypothesis.

Solution Summary: The author explains the level of significance, null hypothesis, and alternative hypothesis. The sample test statistic z is 1.08.

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The level of significance, null and alternative hypothesis.

To find: The sampling distribution that should be used and compute the value of the sample test statistic.

To find: The critical value of the test statistic and sketch the sampling distribution showing the critical region.

Whether we reject or fail to reject the null hypothesis and whether the data is statistically significant for a level of significance of 0.01.

The interpretation for the conclusion.

The comparison for our conclusion with the conclusion obtained from the P-value method.

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Chapter 9 Solutions