State the null and alternative hypotheses. Obtain the test statistic. Obtain the P -value or critical value. Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care. Comment whether or not the sustained care is effective.

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Answer 1

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Chapter 8.2, Problem 30BSC

To determine

State the null and alternative hypotheses.

Obtain the test statistic.

Obtain the P-value or critical value.

Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care.

Comment whether or not the sustained care is effective.

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Let us suppose we have some article reported on a study of potential sources of injury to equine veterinarians conducted at a university veterinary hospital. Forces on the hand were measured for several common activities that veterinarians engage in when examining or treating horses. We will consider the forces on the hands for two tasks, lifting and using ultrasound. Assume that both sample sizes are 6, the sample mean force for lifting was 6.2 pounds with standard deviation 1.5 pounds, and the sample mean force for using ultrasound was 6.4 pounds with standard deviation 0.3 pounds. Assume that the standard deviations are known. Suppose that you wanted to detect a true difference in mean force of 0.25 pounds on the hands for these two activities. Under the null hypothesis, 40 0. What level of type II error would you recommend here? = Round your answer to four decimal places (e.g. 98.7654). Use α = 0.05. β = 0.0594 What sample size would be required? Assume the sample sizes are to be…

Consider the hypothesis test Ho: 0 s² = = 4.5; s² = 2.3. Use a = 0.01. = σ against H₁: 6 > σ2. Suppose that the sample sizes are n₁ = 20 and 2 = 8, and that (a) Test the hypothesis. Round your answers to two decimal places (e.g. 98.76). The test statistic is fo = 1.96 The critical value is f = 6.18 Conclusion: fail to reject the null hypothesis at a = 0.01. (b) Construct the confidence interval on 02/2/622 which can be used to test the hypothesis: (Round your answer to two decimal places (e.g. 98.76).) 035

Using the method of sections need help solving this please explain im stuck

Answer 2

Question

Chapter 8.2, Problem 30BSC

To determine

State the null and alternative hypotheses.

Obtain the test statistic.

Obtain the P-value or critical value.

Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care.

Comment whether or not the sustained care is effective.

Expert Solution & Answer

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Answer 3

Question

Chapter 8.2, Problem 30BSC

To determine

State the null and alternative hypotheses.

Obtain the test statistic.

Obtain the P-value or critical value.

Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care.

Comment whether or not the sustained care is effective.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Chapter 8.2, Problem 30BSC

To determine

State the null and alternative hypotheses.

Obtain the test statistic.

Obtain the P-value or critical value.

Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care.

Comment whether or not the sustained care is effective.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 8.2, Problem 30BSC

To determine

State the null and alternative hypotheses.

Obtain the test statistic.

Obtain the P-value or critical value.

Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care.

Comment whether or not the sustained care is effective.

Answer 6

Chapter 8.2, Problem 30BSC

To determine

State the null and alternative hypotheses.

Obtain the test statistic.

Obtain the P-value or critical value.

Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care.

Comment whether or not the sustained care is effective.

Answer 7

Chapter 8.2, Problem 30BSC

To determine

State the null and alternative hypotheses.

Obtain the test statistic.

Obtain the P-value or critical value.

Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care.

Comment whether or not the sustained care is effective.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 8.1 - 4. Interpreting P-value The Ericsson method is one...Ch. 8.1 - Prob. 5BSC Ch. 8.1 - Prob. 6BSC Ch. 8.1 - Prob. 7BSC Ch. 8.1 - Prob. 8BSC Ch. 8.1 - Prob. 29BB Ch. 8.1 - Prob. 30BB Ch. 8.1 - Prob. 31BB Ch. 8.2 - Prob. 5BSC Ch. 8.2 - Prob. 8BSC

State the null and alternative hypotheses. Obtain the test statistic. Obtain the P -value or critical value. Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care. Comment whether or not the sustained care is effective.

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State the null and alternative hypotheses.

Obtain the test statistic.

Obtain the P-value or critical value.

Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care.

Comment whether or not the sustained care is effective.

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Chapter 8 Solutions

State the null and alternative hypotheses. Obtain the test statistic. Obtain the P -value or critical value. Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care. Comment whether or not the sustained care is effective.

Concept explainers

Videos

State the null and alternative hypotheses. Obtain the test statistic. Obtain the P-value or critical value. Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care. Comment whether or not the sustained care is effective.

Want to see the full answer?

Chapter 8 Solutions

State the null and alternative hypotheses.

Obtain the test statistic.

Obtain the P-value or critical value.

Test whether there is enough evidence to infer that 80% of the people have started smoking after sustained care.

Comment whether or not the sustained care is effective.