How long does it take to commute from home to work? It depends on several factors,...
- How long does it take to commute from home to work? It depends on several factors, including route, traffic, and time of departure. The data below are results (in minutes) from a random sample of eight trips.
27 38 30 42 24 37 30 39
- a. What is the sample mean and the sample standard deviation s? (Use Desmos.) Round your answers to the nearest tenth.
- b. Use these data to create a 95% confidence interval for the population mean time of the commute. Round your final answers to the nearest tenth.
- c. Interpret the meaning of the confidence interval in the context of this problem. Include units in your answer.
- d. If your trip home is 26 minutes, would that be considered above or below the population average? Why or why not?
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How long does it take to commute from home to work? It depends
on several factors,...
2.33 +2.58 96 How long does it take to commute from home to work? It depends...
2.33 +2.58 96 How long does it take to commute from home to work? It depends on several factors, including route, traffic, and time of departure. The data below are results (in minutes) from a random sample of eight trips. 27 38 30 42 24 37 30 39 a.) What are the sample mean X and the sample standard deviation s points each) Hint: Enter the data set in the calculator or use the formulas in Chapter 2 to find...
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6.2.17-T Question Help In a random sample of 21 people, the mean commute time to work was 34.9 minutes and the standard deviation was 7.3 minutes Assume the population is normaly distrbuted and use a t-distribution to construct a 80% confidence interval for the population mean μ what is the margin of error of μ? Interpret the results The confidence interval for the population mean μ is (Round to one decimal place as needed.) Enter your answer in the edit...
2.33 +2.58 96 How long does it take to commute from home to work? It depends on several factors, including route, traffic, and time of departure. The data below are results (in minutes) from a random sample of eight trips. 27 38 30 42 24 37 30 39 a.) What are the sample mean X and the sample standard deviation s points each) Hint: Enter the data set in the calculator or use the formulas in Chapter 2 to find...
In a random sample of 29 people, the mean commute time to work was 323 minutes and the standard deviation was 72 minutes. Assume the population is normally distributed and use at distribution to construct a 99% confidence interval for the population mean . What is the margin of error of u? Interpret the results The confidence interval for the population MAAN (Round to ona decimal ACA 2 neded) D The margin of error of his (Round to ona decimal...
In a random sample of 24 people, the mean commute time to work was 32 minutes and t andard deviation was 7 minutes. Assume the population is normally debuted and use a distribution to constructa 99% confidence interval for the population mean what is the margin of error of Interpret the results The concerteval for the population means Round tone decimal places needed) The margin of error of Round to ore decimal place as needed) Interpret the results DAW concertante...
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