A researcher is studying how much electricity (in kilowatt hours) people from two different cities use intheir homes. Random samples of 11 days from Tampa (Group 1) and 16 days from New York City (Group 2)are shown below. Test the claim that the mean number of kilowatt hours in Tampa greater than the meannumber of kilowatt hours in New York City. Use a significance level of a = 0.10. Assume the populationsare approximately normally distributed with unequal variances. Round answers to 4 decimal places.Tampa New York City1015.410101010.31022.81001.71028.91001.71026.91022.61001.71020.21012.41021.91015.91018.91005.8996.21006.11010.510121005.11025.91005.61020.2985.3994.91013.2What are the correct hypotheses? Note this may view better in full screen mode. Select the correct symbolsfor each of the 6 spaces.Ho: Select an answer ✓ ? Select an answer ✓H₁: Select an answer ✓? ✓Select an answer ✓ Based on the hypotheses, find the following:Test Statistic =p-value =The p-value is Select an answerThe correct decision is to Select an answerto alpha.The correct summary would be: Select an answerof kilowatt hours in Tampa greater than the mean number of kilowatt hours in New York City.the claim that the mean number

Answered: Image /qna-images/answer/fae55bc4-aa2b-4eea-96c6-76aae702ac85.jpg

Answered: Based on the hypotheses, find the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In a 1868 paper, German physician Carl Wunderlich reported based on over a million body temperature readings that the mean body temperature for healthy adults is 98.6° F. However, it is now commonly believed that the mean body temperature of a healthy adult is less than what was reported in that paper. To test this hypothesis a researcher measures the following body temperatures from a random sample of healthy adults. 98.2, 98.6, 98.5, 98.6, 97.6, 98.2, 98.0 (a) Find the value of the test statistic. (b) Find the 10% critical value.
Review the information below and select the best choice. Select only one choice. ±σ Mean Time Between Failures Six .002 Five 0.57 Four 63 Three 2700 Assumme an electronic system at a nuclear facility is being monitored constantly, and it is currrently rated to have two milllion hours between failures. This implies that the electronic system is operating at: a. better than or equal to six sigma. b. between five and six sigma. c. between four and five sigma. d. between three and four sigma. e. less than three sigma.
A student proposed the following question for the class to investigate: Does the temperature of a tennis ball affect how high the ball will bounce? Examine the table of data above. Write a claim that can be made from these data. Be sure to explain your reasoning, and support your answer quantitatively.
A knewton.com Question The following data was calculated during a study on customer experience. Use the following information to find the test statistic and p-value at a 10% level of significance: • The claim is that the percent of companies that view customer experience as the most vital component of a growing business is different than 50%. Sample size = 50 companies • Sample proportion = 0.40 Use the table or the curve below to find the test statistic and p-value. For the curve select the appropriate test by dragging the blue point to a right-, left- or two-tailed diagram, then set the sliders. Use the purple slider to set the significance level. Use the black sliders to set the information from the study described above. z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 |-1.5 0.067 0.0660.064 0.063 0.062 0.061 0.059 o.058 0.057 0.056 -1.40.081 0.0790.078 0.076 0.075 0.074 0.072 0.071 0.069 0.068 |-1.3 0.097 0.095 0.093 0.092 0.090 0.089 0.087 0.085 0.084 0.082 -1.2 0.115…
Only need answers for D and E thank you.
Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of ? = 16.4 feet for waves hitting the shore. Suppose that a Nor'easter is in progress at the severe storm class rating. Peak wave heights are usually measured from land (using binoculars) off fixed cement piers. Suppose that a reading of 38 waves showed an average wave height of x = 16.7 feet. Previous studies of severe storms indicate that ? = 3.5 feet. Does this information suggest that the storm is (perhaps temporarily) increasing above the severe rating? Use ? = 0.01. a) What is the value of the sample test statistic? (Round your answer to two decimal places.)
Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of ? = 16.4 feet for waves hitting the shore. Suppose that a Nor'easter is in progress at the severe storm class rating. Peak wave heights are usually measured from land (using binoculars) off fixed cement piers. Suppose that a reading of 40 waves showed an average wave height of x = 17.5 feet. Previous studies of severe storms indicate that ? = 4.0 feet. Does this information suggest that the storm is (perhaps temporarily) increasing above the severe rating? Use ? = 0.01. Solve the problem using the critical region method of testing (i.e., traditional method). (Round your answers to two decimal places.) test statistic = critical value = State your conclusion in the context of the application. Reject the null…
For questions 6 through 11, refer to the following table, representing responses from the 2018 GSS: Respondent Sex Mean Hours Worked Last Week Standard Deviation N Male 44.60 14.969 670 Female 38.15 13.276 711 6. What proportion of females worked less than 40 hours per week? a. How many people in the sample does that correspond to?7. What percentage of males worked between 40 and 50 hours per week? a. How many people in the sample does that correspond to?8. What number of hours worked among females corresponds with a Z score of -2.00?9. Calculate the number of hours worked last week that corresponds to the 95th percentile for each sex. a. If you were going to calculate the 75th percentile, what Z value would you use? 10. Calculate the standard error for both males and females. a. What are you using for sigma, and why? 11. Calculate the 95% confidence interval for each sex. Can you say with 95% confidence that they are different? Why or why not? a. If you were…
The toll plaza on Route 1 in Dover has four tollbooths open to all vehicles. Ms. Timlin conducted a chi-square goodness of fit test to see if all of the booths are used in equally. A chi-square value of 23.4 was calculated, resulting in a p-value of 0.006. Which of the following is correct? a. There is sufficient evidence to suggest that the tollbooths are not used in equal proportions. Selected:b. There is sufficient evidence to suggest that the tollbooths are used in equal proportions.This answer is incorrect. c. The tollbooths are used in equal proportions. d. There is insufficient evidence to suggest that the tollbooths are used in equal proportions. e. There is insufficient evidence to suggest that the tollbooths are not used in equal proportions.
Each car in a random sample of 170 cars sold in 2010 at a large car dealership was classified by color. Sixty of the cars were white, 80 were blue, 20 were silver and 10 were red. What is the value of the chi-square test statistic in a test of Ho: Pw=Pb=Ps=Pr=0.25 A. 18 B. 32 C. 56 D. 77 E. 110
Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of ? = 16.4 feet for waves hitting the shore. Suppose that a Nor'easter is in progress at the severe storm class rating. Peak wave heights are usually measured from land (using binoculars) off fixed cement piers. Suppose that a reading of 32 waves showed an average wave height of x = 17.3 feet. Previous studies of severe storms indicate that ? = 3.5 feet. Does this information suggest that the storm is (perhaps temporarily) increasing above the severe rating? Use ? = 0.01.
Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of ? = 16.4 feet for waves hitting the shore. Suppose that a Nor'easter is in progress at the severe storm class rating. Peak wave heights are usually measured from land (using binoculars) off fixed cement piers. Suppose that a reading of 38 waves showed an average wave height of x = 17.3 feet. Previous studies of severe storms indicate that ? = 3.5 feet. Does this information suggest that the storm is (perhaps temporarily) increasing above the severe rating? Use ? = 0.01. a) Estimate the P-value. choose one: P-value > 0.2500. 100 < P-value < 0.250 0.050 < P-value < 0.1000. 010 < P-value < 0.050 P-value < 0.010 b) Sketch the sampling distribution and show the area corresponding to the P-value.…

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