Exercise 07.45 Algorithmic 4 Oues Check A O Allegiant Airlines charges a mean base fare of $88. In addition, the airline charges for making a reservation on its website checking bags, and inflight beverages. These additio charges average $34 per passenger. Suppose a random sample of 70 passengers is taken to determine the total cost of their flight on Allegiant Airlines. The population standard of total flight cost is known to be $37. Use z-table. a. What is the population mean cost per flight? S 122 b. What is the probability the sample mean will be within $10 of the population mean cost per flight (to 4 decimals)? c. What is the probability the sample mean will be within $5 of the population mean cost per flight (to 4 decimals)? Hide Feedback Partially Correct Check My Wor

Exercise 07.45 Algorithmic 4 Oues Check A O Allegiant Airlines charges a mean base fare of $88. In addition, the airline charges for making a reservation on its website checking bags, and inflight beverages. These additio charges average $34 per passenger. Suppose a random sample of 70 passengers is taken to determine the total cost of their flight on Allegiant Airlines. The population standard of total flight cost is known to be $37. Use z-table. a. What is the population mean cost per flight? S 122 b. What is the probability the sample mean will be within $10 of the population mean cost per flight (to 4 decimals)? c. What is the probability the sample mean will be within $5 of the population mean cost per flight (to 4 decimals)? Hide Feedback Partially Correct Check My Wor

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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Miller (2008) examined the energy drink consumption of college undergraduates and found that males used energy drinks significantly more often than females did. To further investigate this phenomenon, a researcher selects a random sample of n = 36 male undergraduates and a sample of n = 25 females. On average, the males report consuming M = 2.45 drinks per month, and females have an average of M = 1.28. Assume that the overall level of consumption for college undergraduates averages μ = 1.85 energy drinks per month and that the distribution of monthly consumption scores is approximately normal with a standard deviation of σ = 1.2. Did this sample of males consume significantly more energy drinks than the overall population average? Use a one-tailed test with α = .01. Use the Distributions tool to help you find the critical values. The null hypothesis is H₀: . For the sample of males, the standard error is σMM = , and z =, which is the critical value of .…
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Are Husbands More Likely to Be Older Than Wives? Exercise 2.213 introduces a dataset giving the ages of the two people getting married for a sample of marriage licenses. (In the sample, all of the marriages were between male-female couples.) In the sample of 105 marriages, the husband was older than the wife in 75 of them. Test to see if this sample provides evidence that, in male-female married couples, the husband is older than the wife in more than half of them. Use p to represent the proportion of all male-female married couples for which the husband is older, and show all details of the test. Test-statistic = (round to three decimal places)p-value = (round to four decimal places)Conclusion: Reject H0. We cannot conclude that the husband is older in more than half of male-female married couples. Reject H0. We have evidence that the husband is older in more than half of all male-female married couples. Do not reject H0. We have evidence that…
Miller (2008) examined the energy drink consumption of college undergraduates and found that males use energy drinks significantly more often than females. To further investigate this phenomenon, suppose a researcher selects a random sample of n = 36 male undergraduates and a sample of n = 25 females. On average, the males reported consuming M = 2.45 drinks per month and females had an average of M = 1.28. Assume that the overall level of consumption for college undergraduates averages μ = 1.85 energy drinks per month, and that the distribution of monthly consumption scores is approximately normal with a standard deviation of σ = 1.2. A) The researcher wants to know if the sample of males consume significantly more energy drinks than the overall population average. What decision should be made about the null hypothesis? Be sure to use the correct language when answering this question. Compute Cohen’s d to measure the size of the effect. Is it a small, medium or large effect?…
Miller (2008) examined the energy drink consumption of college undergraduates and found that males use energy drinks significantly more often than females. To further investigate this phenomenon, suppose a researcher selects a random sample of n = 36 male undergraduates and a sample of n = 25 females. On average, the males reported consuming M = 2.45 drinks per month and females had an average of M = 1.28. Assume that the overall level of consumption for college undergraduates averages μ = 1.85 energy drinks per month, and that the distribution of monthly consumption scores is approximately normal with a standard deviation of σ = 1.2.   What decision should be made about the null hypothesis? Be sure to use the correct language when answering this question. Compute Cohen’s d to measure the size of the effect. Is it a small, medium or large effect? Write a sentence describing the outcome of the hypothesis test and the measure of effect size as it would appear in a research…
Miller (2008) examined the energy drink consumption of college undergraduates and found that males use energy drinks significantly more often than females. To further investigate this phenomenon, suppose a researcher selects a random sample of n = 36 male undergraduates and a sample of n = 25 females. On average, the males reported consuming M = 2.45 drinks per month and females had an average of M = 1.28. Assume that the overall level of consumption for college undergraduates averages μ = 1.85 energy drinks per month, and that the distribution of monthly consumption scores is approximately normal with a standard deviation of σ = 1.2.   A) The researcher wants to know if the sample of males consume significantly more energy drinks than the overall population average. What are the independent and dependent variables? Using symbols, state the hypotheses for the type of test you indicated in part b. (H0 and H1) Test the researcher’s hypothesis - use an α = .01. What decision…
Miller (2008) examined the energy drink consumption of college undergraduates and found that males use energy drinks significantly more often than females. To further investigate this phenomenon, suppose a researcher selects a random sample of n = 36 male undergraduates and a sample of n = 25 females. On average, the males reported consuming M = 2.45 drinks per month and females had an average of M = 1.28. Assume that the overall level of consumption for college undergraduates averages μ = 1.85 energy drinks per month, and that the distribution of monthly consumption scores is approximately normal with a standard deviation of σ = 1.2.   A) The researcher wants to know if the sample of males consume significantly more energy drinks than the overall population average. What are the independent and dependent variables? Using symbols, state the hypotheses for the type of test you indicated in part b. (H0 and H1) Test the researcher’s hypothesis - use an α = .01. What decision…
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