Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below.TInterval(13.046,22.15)X= 17.598Sx = 16.01712719n= 50a. Express the confidence interval in the format that uses the "less than" symbol. Given that the original listed data use one decimal place, round the confidence interval limits accordingly.13.05 Mbps < u< 22.15 Mbps(Round to two decimal places as needed.)b. Identify the best point estimate of u and the margin of error.The point estimate of u is(Round to two decimal places as needed.)Mbps.The margin of error is E = Mbps.(Round to two decimal places as needed.)c. In constructing the confidence interval estimate of u, why is it not necessary to confirm that the sample data appear to be from a population with a normal distribution?O A. Because the sample is a random sample, the distribution of sample means can be treated as a normal distribution.O B. Because the sample standard deviationOC. Because the population standard deviation is known, the normal distribution can be used to construct the confidence interval.known, the normal distribution can be used to construct the confidence interval.

a. The 95% confidence interval for the population mean is given below: It is given that the sample…

Answered: Refer to the accompanying data display…

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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Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. T Interval (13.046,22.15) x=17.598 Sx=16.01712719 n=50 Express the confidence interval in the format that uses the "less than" symbol. Given that the original listed data use one decimal place, round the confidence interval limits accordingly.
Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two fast food restaurants. Construct a 90% confidence interval estimate of the mean drive-through service time for Restaurant X at dinner; then do the same for Restaurant Y. Compare the resultts Construct a 90% confidence interval of the mean drive-through service times at dinner for Restaurant X.?
Refer to the accompanying data set and construct a 90 % confidence interval estimate of the mean pulse rate of adult females; then do the same for adult males. Compare the results. Construct a 90 % confidence interval of the mean pulse rate for adult females. nothing bpmless than muless thannothing bpm (Round to one decimal place as needed.) Construct a 90 % confidence interval of the mean pulse rate for adult males. nothing bpmless than muless thannothing bpm (Round to one decimal place as needed.) Compare the results. A. The confidence intervals do not overlap, so it appears that there is no significant difference in mean pulse rates between adult females and adult males. B. The confidence intervals overlap, so it appears that there is no significant difference in mean pulse rates between adult females and adult males. C. The confidence intervals overlap, so it appears that adult males have a significantly…
Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. TInterval (13.046,22.15) x=17.598 Sx=16.01712719 n=50 Question content area bottom Part 1 a. Express the confidence interval in the format that uses the "less than" symbol. Given that the original listed data use one decimal place, round the confidence interval limits accordingly. 13.0513.05 Mbps<μ<22.1522.15 Mbps (Round to two decimal places as needed.) Part 2 b. Identify the best point estimate of μ and the margin of error. The point estimate of μ is enter your response here Mbps. (Round to two decimal places as needed.)
Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. TInterval (13.046,22.15) x=17.598 Sx=16.01712719 n=50 Question content area bottom Part 1 a. Express the confidence interval in the format that uses the "less than" symbol. Given that the original listed data use one decimal place, round the confidence interval limits accordingly. 13.0513.05 Mbps<μ<22.1522.15 Mbps (Round to two decimal places as needed.) Part 2 b. Identify the best point estimate of μ and the margin of error. The point estimate of μ is 17.6017.60 Mbps. (Round to two decimal places as needed.) Part 3 The margin of error is E=4.554.55 Mbps. (Round to two decimal places as needed.) Part 4 c. In constructing the confidence interval estimate of μ, why is it not necessary to confirm that the sample data appear to be from a population with a normal distribution? A. Because the…
In monitoring lead in the air after the explosion at the battery factory, it is found that the amounts of lead over a 8 day period had a standard error of 1.88. Find the margin of error that corresponds to a 95% confidence interval. (Round to 2 decimal places)
Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two fast food restaurants. Construct a 90% confidence interval estimate of the mean drive-through service time for Restaurant X at dinner; then do the same for Restaurant Y. Compare the results. Construct a 90% confidence interval of the mean drive-through service times at dinner for Restaurant X and Y?
Refer to the accompanying data set and construct a 95 % confidence interval estimate of the mean pulse rate of adult females; then do the same for adult males. Compare the results. Construct a 95 % confidence interval of the mean pulse rate for adult females. nothing bpmless than muless thannothing bpm (Round to one decimal place as needed.) Construct a 95 % confidence interval of the mean pulse rate for adult males. nothing bpmless than muless thannothing bpm (Round to one decimal place as needed.) Compare the results. A. The confidence intervals overlap, so it appears that there is no significant difference in mean pulse rates between adult females and adult males. B. The confidence intervals overlap, so it appears that adult males have a significantly higher mean pulse rate than adult females. C. The confidence intervals do not overlap, so it appears that there is no significant difference in mean pulse rates between adult females and adult males. D. The confidence…
A volumetric calcium analysis on triplicate samples of the blood serum of a patient believed to be suffering from a hyperparathyroid condition produced the following data: mmol Ca/L = 3.15, 3.25, 3.26. What is the 95% confidence interval for the mean of the data, assuming(a) No prior information about the precision of the analysis?(b) s → σ = 0.056 mmol Ca/L?
In a study of maternal cigarette smoking and bone density in newborns, 77 infants of mothers who smoked had a mean bone mineral content of 0.098 g/cm3 (s1 = 0.026 g/cm3). The 161 infants whose mothers did not smoke had a mean bone mineral content of 0.095 g/cm3 (s2 = 0.025 g/cm3). Calculate the 95% confidence interval for µ1 - µ2
To build an interval estimate for the proportion (percentage) of American households who live paycheck-to-paycheck, a random sample 754 full-time workers showed 606 live paycheck-to-paycheck. 19 In the previous question, build a confidence interval such that in 19 out of 20 cases such intervals would capture the actual population proportion of households who live paycheck-to-paycheck is ________. a 0.794 0.814 b 0.787 0.821 c 0.775 0.832 d 0.756 0.851
The Ball Corporation's beverage can manufacturing plant in Fort Atkinson, Wisconsin, uses a metal supplier that provides metal with a known thickness standard deviation σ = .000786 mm. Assume a random sample of 55 sheets of metal resulted in an x¯x¯ = .3307 mm. Calculate the 98 percent confidence interval for the true mean metal thickness. (Round your answers to 4 decimal places.) The 98% confidence interval is from ? to ?

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