testing a cliam about a population proportion
A psychologist claims that more than 7.1% of adults suffer from extreme shyness. Identify the type II error for the test.
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Please answer all 3 questions Question 21 1 pts Express the null hypothesis Ho and the...
Please answer all 3 questions
Question 21 1 pts Express the null hypothesis Ho and the alternative hypothesis Hy in symbolic form. Use the correct symbol (.p.o)for the indicated parameter. A psychologist claims that more than 4.6 percent of the population suffers from professional problems due to extreme shyness. Use p, the true percentage of the population that suffers from extreme shyness. O Ho:p> 4.6% H:ps 4.6% O Ho:p-4.6% H:P < 4.6% O Ho:P 5 4.6% H:p> 4.6% O Ho:p...
Select the correct definition of the p-value of a test from the answer choices below: The...
Select the correct definition of the p-value of a test from the answer choices below: The probability that the null hypothesis is true The probability that, assuming the null hypothesis is true, we obtained a test statistic as or more extreme than what we calculated The probability that, assuming the alternative hypothesis is true, we obtained a test statistic as or more extreme than what we calculated The probability that the alternative hypothesis is false, given that the null hypothesis...
1) A psychologist claims that more than 62 percent of the population suffers from professional problems...
1) A psychologist claims that more than 62 percent of the population suffers from professional problems due to extreme shyness. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms. There is sufficient evidence to support the claim that the true proportion is less than 62 percent. There is sufficient evidence to support the claim that the true proportion is greater than...
Assume that a hypothesis test of the given claim will be conducted. Identify the type I...
Assume that a hypothesis test of the given claim will be conducted. Identify the type I or type II error for the test. A consumer advocacy group claims that the mean mileage for the Carter Motor Company's new sedan is less than 32 miles per gallon. Identify the type I error for the test.
Construct a confidence interval for ?d, the mean of the differences d for the population of...
Construct a confidence interval for ?d, the mean of the differences d for the population of paired data. Assume that the population of paired differences is normally distributecd 21) A coach uses a new technique in training middle distance runners. The times for 9 differen 21) athletes to run 800 meters before and after this training are shown below Athlete A BC D EF G H I Time before training (seconds) 115.2 120.9 108.0 112.4 107.5 119.1 121.3 110.8 122.3...
1.) Assume that a sample is used to estimate a population proportion p. Find the margin...
1.) Assume that a sample is used to estimate a population proportion p. Find the margin of error m that corresponds to the given statistics and confidence level. Round the margin of error to four decimal places. 95% confidence; n = 380, x = 50 Group of answer choices 0.0340 0.0408 0.0306 0.0357 2.) Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. A researcher claims that 62% of voters favor gun control. Assuming that...
Question 21 (4 points) For a hypothesis test about a population proportion or mean, if the...
Question 21 (4 points) For a hypothesis test about a population proportion or mean, if the level of significance is less than the p- value, the null hypothesis is rejected. (Ch10) True False Question 22 (4 points) Everything else being constant, increasing the sample size decreases the probability of committing a Type II error. (Ch10) True False The power of a statistical test is the probability of not rejecting the null hypothesis when it is true. (Ch10) True False Question...
Assume that a hypothesis test of a given claim will be conducted. Identify the type I...
Assume that a hypothesis test of a given claim will be conducted. Identify the type I or type II error for the test. An entomologist writes an article in a scientific journal which claims that fewer than 11 in ten thousand male fireflies are unable to produce light due to a genetic mutation. Identify the type I error for the test.
a) the sample proportion of women who suffer side effects is 10 b) the population proportion...
a) the sample proportion of women who suffer side effects is 10 b) the population proportion of women who suffer side effects is 10%. c) the sample proportion of women who suffer side effects is not equal to 10%. d) the population proportion of women who suffer side effects is greater than 10% e) the sample proportion of women who suffer side effects is less than 10%. 12-19. An auto manufacturer claims that its new 4 cylinder auto with manual...
Suppose we wish to test H0: μ=45 vs. H1: μ> 45. What will result if we...
Suppose we wish to test H0: μ=45 vs. H1: μ> 45. What will result if we conclude that the mean is greater than 45 when the actual mean is 50? Group of answer choices We have made a Type I error. We have made a Type II error. We have made both a Type I error and a Type II error. We have made the correct decision.
Please answer all 3 questions
Question 21 1 pts Express the null hypothesis Ho and the alternative hypothesis Hy in symbolic form. Use the correct symbol (.p.o)for the indicated parameter. A psychologist claims that more than 4.6 percent of the population suffers from professional problems due to extreme shyness. Use p, the true percentage of the population that suffers from extreme shyness. O Ho:p> 4.6% H:ps 4.6% O Ho:p-4.6% H:P < 4.6% O Ho:P 5 4.6% H:p> 4.6% O Ho:p...
Select the correct definition of the p-value of a test from the answer choices below: The probability that the null hypothesis is true The probability that, assuming the null hypothesis is true, we obtained a test statistic as or more extreme than what we calculated The probability that, assuming the alternative hypothesis is true, we obtained a test statistic as or more extreme than what we calculated The probability that the alternative hypothesis is false, given that the null hypothesis...
1) A psychologist claims that more than 62 percent of the population suffers from professional problems due to extreme shyness. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms. There is sufficient evidence to support the claim that the true proportion is less than 62 percent. There is sufficient evidence to support the claim that the true proportion is greater than...
Construct a confidence interval for ?d, the mean of the differences d for the population of paired data. Assume that the population of paired differences is normally distributecd 21) A coach uses a new technique in training middle distance runners. The times for 9 differen 21) athletes to run 800 meters before and after this training are shown below Athlete A BC D EF G H I Time before training (seconds) 115.2 120.9 108.0 112.4 107.5 119.1 121.3 110.8 122.3...
Question 21 (4 points) For a hypothesis test about a population proportion or mean, if the level of significance is less than the p- value, the null hypothesis is rejected. (Ch10) True False Question 22 (4 points) Everything else being constant, increasing the sample size decreases the probability of committing a Type II error. (Ch10) True False The power of a statistical test is the probability of not rejecting the null hypothesis when it is true. (Ch10) True False Question...
a) the sample proportion of women who suffer side effects is 10 b) the population proportion of women who suffer side effects is 10%. c) the sample proportion of women who suffer side effects is not equal to 10%. d) the population proportion of women who suffer side effects is greater than 10% e) the sample proportion of women who suffer side effects is less than 10%. 12-19. An auto manufacturer claims that its new 4 cylinder auto with manual...
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