The 92 million Americans of age 50 and over control 50 percent of all discretionary income. AARP estimates that the average annual expenditure on restaurants and carryout food was $1,876 for individuals in this age group. Suppose this estimate is based on a sample of 80 persons and that the sample standard deviation is $550. Round your answers to the nearest whole numbers. a. At 99% confidence, what is the margin of error? b. What is the 99% confidence interval for the population mean amount spent on restaurants and carryout food? c. What is your estimate of the total amount spent by Americans of age 50 and over on restaurants and carryout food? million d. If the amount spent on restaurants and carryout food is skewed to the right, would you expect the median amount spent to be greater or less than $1,876 ? Select your answer -

The 92 million Americans of age 50 and over control 50 percent of all discretionary income. AARP estimates that the average annual expenditure on restaurants and carryout food was $1,876 for individuals in this age group. Suppose this estimate is based on a sample of 80 persons and that the sample standard deviation is $550. Round your answers to the nearest whole numbers. a. At 99% confidence, what is the margin of error? b. What is the 99% confidence interval for the population mean amount spent on restaurants and carryout food? c. What is your estimate of the total amount spent by Americans of age 50 and over on restaurants and carryout food? million d. If the amount spent on restaurants and carryout food is skewed to the right, would you expect the median amount spent to be greater or less than $1,876 ? Select your answer -

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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The table below displays the adult literacy rate in Bolivia for several different years. The adult literacy rate is the percentage of people ages 15 and above who can both read and write with understanding a short simple statement about their everyday life. Data downloaded on 2/19/2020 from https://ourworldindata.org/grapher/literacy-rate-adults?tab=chart&time=1973..2016. Year 1976 2001 2012 Literacy Rate 63.2% 86.7% 94.5% When answering the questions below, round to four decimal places in your intermediate computations. Use interpolation or extrapolation (whichever is appropriate) to predict the literacy rate in Bolivia in 1992. Round your answer to one decimal place. You only get one submission for the unit. ---Select--- Use interpolation or extrapolation (whichever is appropriate) to predict the literacy rate in Bolivia in 2050. Round your answer to one decimal place. You only get one submission for the unit. ---Select--- Is your 2050 prediction realistic? You must…