A study was conducted for an aviation safety agency in which they surveyed thousands of passengers at airports across Europe. In this study, the "mass" for a passenger includes the weight of the passenger and all of the passenger's carry-on items, including infants without their own seats. For the 5,904 adult male passengers measured in summer, the sample mean and standard deviation for this mass were 88.8 kg and 15.9 kg, respectively. (a) Construct a 95% confidence interval (in kilograms) for the population mean mass for adult male passengers in summer. (Round your answers to three decimal places.) _to kg (b) Write a sentence or two interpreting the confidence interval you found in part (a). With 95% confidence, we can estimate that the population mean mass of male passengers traveling in the summer is contained within the interval. We can estimate that 95% of the male passengers traveling in the summer in the sample have a mass that is contained within the interval. With 95% confidence, we can estimate that the mean mass of male passengers traveling in the summer in the sample is contained within the interval. We can estimate that 95% of the population of male passengers traveling in the summer have a mass that is contained within the interval. (c) At the time the report was written, the standard in the region was to assume that the average mass for males was 88 kg, and safety regulations were set accordingly. One of the conclusions in this report was "Standard adult passenger masses (male, female and all adult) have increased. Therefore, revision of the region's safety regulations is recommended." Based on the confidence interval you found in part (a), is this a reasonable recommendation for males in summer? Explain. , the recommendation to revise the region's safety regulations reasonable. The confidence interval _ 88 kg, which suggests the population average mass of males traveling in summer ____ .

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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A study was conducted for an aviation safety agency in which they surveyed thousands of passengers at airports across Europe. In this study, the "mass" for a passenger includes the weight of the passenger and all of the passenger's carry-on items, including infants without their own seats. For the 5,904 adult male passengers measured in summer, the sample mean and standard deviation for this mass were 88.8 kg and 15.9 kg, respectively.

(a)

Construct a 95% confidence interval (in kilograms) for the population mean mass for adult male passengers in summer. (Round your answers to three decimal places.)

___to__ kg

(b)

Write a sentence or two interpreting the confidence interval you found in part (a).

With 95% confidence, we can estimate that the population mean mass of male passengers traveling in the summer is contained within the interval.

We can estimate that 95% of the male passengers traveling in the summer in the sample have a mass that is contained within the interval. With 95% confidence, we can estimate that the mean mass of male passengers traveling in the summer in the sample is contained within the interval.

We can estimate that 95% of the population of male passengers traveling in the summer have a mass that is contained within the interval.

(c)

At the time the report was written, the standard in the region was to assume that the average mass for males was 88 kg, and safety regulations were set accordingly. One of the conclusions in this report was "Standard adult passenger masses (male, female and all adult) have increased. Therefore, revision of the region's safety regulations is recommended." Based on the confidence interval you found in part (a), is this a reasonable recommendation for males in summer? Explain.

__ , the recommendation to revise the region's safety regulations reasonable. The confidence interval ___ 88 kg, which suggests the population average mass of males traveling in summer ____ .

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