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.5.947.40 6.29 5.81 6.47 8.28 9.46 7.12 6.834.89 6.52 5.56 7.90 8,28 9.60a. Construct a 95% confidence interval estimate for the population mean amount spent for lunch (S) at a fast-food restaurant.(Round to two decimal places as needed. Do not include the $ symbol in your answer.)G

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. 7.12 6.83 5.94 7.40 6.29 5.81 6.47 8.28 9.46 6.52 5.56 7.90 8.28 9.60 4.89 a. Construct a 95% confidence interval estimate for the population mean amount spent for lunch (S) at a fast-food restaurant. (Round to two decimal places as needed. Do not include the $ symbol in your answer.)

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. 7.12 6.83 5.94 7.40 6.29 5.81 6.47 8.28 9.46 6.52 5.56 7.90 8.28 9.60 4.89 a. Construct a 95% confidence interval estimate for the population mean amount spent for lunch (S) at a fast-food restaurant. (Round to two decimal places as needed. Do not include the $ symbol in your answer.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

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. a. Construct a 90% confidence interval of the mean pulse rate for adult females. (Round to one decimal place as needed.) b. Construct a 90% confidence interval of the mean pulse rate for adult males. (Round to one decimal place as needed.)
.85%, 3.77 of 9 pts 7.1.19-T Question Help ▼ In a study of the accuracy of fast food drive-through orders, Restaurant A had 248 accurate orders and 56 that were not accurate. a. Construct a 90% confidence interval estimate of the percentage of orders that are not accurate. b. Compare the results from part (a) to this 90% confidence interval for the percentage of orders that are not accurate at Restaurant B: 0.171
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
A statistics instructor randomly selected four bags of oranges, each bag labeled 10 pounds, and weighed the bags. They weighed 10.3, 10.8, 10.4, and 10.6 pounds. Assume that the distribution of weights is Normal. Find a 95% confidence interval for the mean weight of all bags of oranges. Use technology for your calculations. Answer parts a and b below. a. Choose the correct interpretation of the confidence interval below and, if necessary, fill in the answer boxes to complete your choice. A. We are 95% confident the population mean is between and B. There is a 95% chance that all intervals will be between and C. We are 95% confident that the sample mean is between and D. The requirements for constructing a confidence interval are not satisfied. (Type integers or decimals rounded to the nearest thousandth as needed. Use ascending order.)
In a survey of 3242 adults aged 57 through 85 years, it was found that 82.9% of them used at least one prescription medication. Complete parts (a) through (c) below. a. How many of the 3242 subjects used at least one prescription medication? ____ (Round to the nearest integer as needed.) b. Construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication. ____%<p<____% (Round to one decimal place as needed.) c. What do the results tell us about the proportion of college students who use at least one prescription medication? A. The results tell us that there is a 90% probability that the true proportion of college students who use at least one prescription medication is in the interval found in part (b). B. The results tell us that, with 90% confidence, the probability that a college student uses at least one prescription medication is in the interval found in part (b).…
what is the effect of selecting a higher confidence level (e.g., 99% vs. 68%) on:1. The associated Z score:A. Increases B. Decreases C. Stays the same 2. The observed sample average:A. Increases B. Decreases C. Stays the same 3. The range of values the population average might take:A. Increases B. Decreases C. Stays the same
You must estimate…
In 2003, the Accreditation Council for Graduate Medical Education (ACGME) implemented new rules limiting work hours for all residents. A key component of these rules is that residents should work no more than 80 hours per week. The following is the number of weekly hours worked in 2017 by a sample of residents at the Tidelands Medical Center. 87 89 81 81 85 76 85 85 79 81 78 79 a. What is the point estimate of the population mean? b. Develop a 90% confidence interval for the population mean. c. Is the council's claim that the "typical resident" works 80 per month reasonable?
The file FastFood contains the amount that a sample of 15 customers spent for lunch ($) at a fast-food restaurant: 7.42 6.29 5.83 6.50 8.34 9.51 7.10 6.80 5.904.89 6.50 5.52 7.90 8.30 9.60 a. Construct a 95% confidence interval estimate for the population mean amount spent for lunch ($) at a fast-food restaurant. b. Interpret the interval constructed in (a) c. What assumption must you make about the population distribu-tion in order to construct the confidence interval estimate in (a)?
Jane decided to open a new store in Santa Anita Mall. He wanted to know the average amount a customer spent per shopping visit by customer. A sample of 29 customers reveals the following amount spent ($). Construct a 98% confidence interval for the population mean. Would it be reasonable for Richard to conclude that the mean amount spent per customer is $79. 63 72 39 78 98 78 69 98 95 102 39 89 89 79 201 29 77 86 68 99 88 49 96 59 89 86 59 96 97
What is the margin of error for the population mean at 90% confidence level for the information in attached data (See attached).