The following data are the amounts that a sample of 15 customers spent for lunch ($) at a fast-food restaurant.Complete parts (a) through (d) below.7.44 6.29 5.79 6.53 8.29 9.474.86 6.53 5.50 7.90 8.29 9.657.12 6.82 5.90 D...a. Construct a 95% confidence interval estimate for the population mean amount spent for lunch ($) at a fast-foodrestaurant.Πεμε ο(Round to two decimal places as needed. Do not include the $ symbol in your answer.)

The amount (in $) spent by 15 sampled customers (i.e., the sample size, n=15) are given as: .

Answered: The following data are the amounts that…

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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The following data are the amounts that a sample of 15 customers spent for lunch ($) at a fast-food restaurant. 7.40 6.29 5.82 6.45 8.36 9.48 7.07 6.78 5.88 4.92 6.53 5.48 7.85 8.28 9.61 a. Construct a 95% confidence interval estimate for the population mean amount spent for lunch ($) at a fast-food restaurant. Round to two decimal places as needed.
The 2018 General Social Survey contains information on the number of poor mental health days adults in the US had in the last month. The data are below. Construct the 90% confidence interval for the mean number of poor mental health days for males. Table 1. Mean number of poor mental health days in the last 30 days by sex Male Female Total 3.55 6.78 1408 Mean 3.02 4.06 S.D. 6.43 7.07 678 730 Source: GSS 2018 Your agswer The 2018 General Social Survey contoins information on the nomberet
The following data shows the number of hours slept by a patient in 1 weeks 12 18 09 16 11 10 08 i.Calculate the unbiased estimate for the population mean. ii.Calculate the unbiased estimate for the population standard deviation iii.Calculate a 95% confidence interval for the mean number of hours
was $2.62 per gallon. The following data show the price per gallon of regular gasoline for 15 randomly selected stations in the state. Complete parts a through c below. 2.61 2.53 2.51 2.69 2.56 2.63 2.55 2.67 2.74 2.68 2.67 2.62 2.52 2.75 2.72 a. Construct a 95% confidence interval to estimate the average price per gallon of gasoline in the state. The 95% confidence interval to estimate the average price per gallon of gasoline in the state is from $ $ . to (Round to the nearest cent.)
The following sample of observations was randomly selected. x 5 3 6 3 4 4 6 8 y 13 15 7 12 13 11 9 5 a. Determine the .95 confidence interval for the mean predicted when x = 7.b. Determine the .95 prediction interval for an individual predicted when x = 7.
1. The data in the file represent egg and cheese symbolizes the total fat, in grams per serving, for a sample of 20 egg and cheese sandwiches from a fast food restaurant. The data are as follows: 7 8 3 5 15 21 22 24 18 33 23 31 25 19 29 29 29 30 41 55 1. Find the mean, mode and the median. 2. Construct 95% confidence interval for the population mean total fat, in grams preserving.
5. Listed below are the values (in dollars) that a random sample of Americans spent on fast food per month. a. Construct a 99% confidence interval of the mean value of money spent on fast food by all Americans. 100 156 67 41 78 62 112 120 70 42 89 85 96 97 11 56 100 98 80 98 20 64 101 100 15 71 35 72 121 74 b. Interpret these results with respect to the amount Americans spend on fast food.
In the table below the miles per gallon of 2007 Ford Taurus car is shown for 13 different owners. Treat the sample as a simple random sample of all 2007 Ford Taurus cars.a. Construct a 95% confidence interval for the mean miles per gallon of a 2007 Ford Taurus. Interpret the interval. 28.5 26.0 21.7 26.3 18.8 24.0 23.423.8 23.5 26.1 28.4 18.0 25.2 b. How large a sample is required to estimate the mean miles per gallon with 0.5 mile per gallon with 95% confidence?
This table contains the cost per ounce ($USD) for a sample of 14 dark chocolate bars: 0.66 0.74 0.97 1.33 1.56 0.91 0.73 0.57 1.57 0.53 a. Construct a 98% Confidence Interval estimate for the population cost per ounce of dark chocolate bars. (Have to find the sample mean and standard deviation first; sample mean becomes your point estimate) b. Construct a 90% confidence interval estimate using the same data. Which estimate gives the larger range of data?
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. Click the icon to view the pulse rates for adult females and adult males. Pulse Rates Pulse Rates (beats per minute) 84 76 50 61 53 63 52 74 55 63 75 60 62 77 82 64 69 94 41 88 Males 74 63 75 71 57 66 55 80 75 63 63 97 60 63 57 58 65 73. 82 56 4 Print Females 79 92 60 68 56 81 77 85 88 58 37 63 87 77 81 63 67 80 58 62 82 82 71 76 88 92 89 91 91 97 66 92 80 78 72 53 102 73 76 74 Done - X
The following data show the number of hours per day 12 adults spent in front of screens watching television-related content. Complete parts a and b below. 1.1 5.5 5.3 2.3 3.8 5.8 4.8 1.5 7.8 2.7 7.1 8.4 a. Construct a 99% confidence interval to estimate the average number of hours per day adults spend in front of screens watching television-related content. The 99% confidence interval to estimate the average number of hours per day adults spend in front of screens watching television-related content is from hours to hours. (Round to two decimal places as needed.)

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