Excel5D2123458UH23679File1011141516171819202122232425262728293031323321template - SavedADollarsSpent10712164353534455417119542336629Home=InsertBArialX ✓ fxPart aMeanDrawPart bStandard Deviation✓ 10Page LayoutPart cDegrees of FreedomData +сLower Limit Critical Chi-squareUpper Limit Critical Chi-squareCalculation Mode: Automatic Workbook StatisticsVThe 95% confidence intervalC.I.Lower LimitC.I.Upper LimitBFormulasVDSearch (Option + Q)DataReviewEViewFormulaabHelpF#N/A#N/A#N/A#N/A#N/A#N/A#N/ANumber>G←0.00.00→.0H▬▬▬▬1VJKEvLEditingAPMGive Feedback to MicrosoftCommentsNTO100% + Americans spend nearly $7 billion on Halloween costumes and decorations. Sample data showing the amount, in dollars, 16 adults spent on a Halloween costume are contained in theExcel Online file below. Construct a spreadsheet to answer the following questions.XOpen spreadsheeta. What is the point estimate of the population mean amount adults spend on a Halloween costume (to 2 decimals)?$b. What is the sample standard deviation (to 2 decimals)?$c. Provide a 95% confidence interval estimate of the population standard deviation for the amount adults spend on a Halloween costume (to 2 decimals)?$

The given data set is, 10,71,21,64,35,35,34,45,54,17,11,95,42,33,66,29 Here, we have to construct a…

Answered: Americans spend nearly $7 billion on…

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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Listed below are the annual tuition amounts of the 10 most expensive colleges in a country for a recent year. What does this "Top 10" list tell us about the population of all of that country's college tuitions? $51,362 $51,499 $50,661 $54,037 $54,037 $54,143 $52,884 $51,251 $53,379 $54,335 Find the mean, midrange, median, and mode of the data set. The mean of the data set is $. (Round to two decimal places as needed.)
The British Department of Transportation studied to see if people avoid driving on Friday the 13th. They did a traffic count on a Friday and then again on a Friday the 13th at the same two locations. The data for each location on the two different dates is in the table. Estimate the mean difference in traffic count between the 6th and the 13th using a 95% level. Round to the nearest whole number. Traffic Count Dates 1990, July 1990, July 6th 13th 124843 122766 122384 122909 1991, September 124255 122340 1991, September 123125 120366 1991, December 1991, December 127873 128871 118840 115788 135754 133695 1992, March 1992, March 131116 128582 1992, November 133042 130642 1992, November 126159 127110 With 95 count between the 6th and the 13th is between O % confidence, it can be said that the true mean difference in traffic and
should have the right to marry. (The 2014 data were collected before the 2015 U.S. C2. GSS 2014 and GSS 2018 respondents were asked their opinion on whether homosexuals 30 measured on a 5-point scale from strongly agree (1) to strongly disagree (5). Supreme Court decision granting same-sex couples the right to marry. Responses wer measured on a 5-point scale from strongly agree (1) to strong!y aisagiee (2). Cumulative Percentage Homosexuals Should Have Right to Marry (2014) Percentage Frequency 32.5 32.5 Strongly agree 251 57.5 25.2 Agree 195 67.3 Neither agree nor disagree 9.6 74 79.2 Disagree 92 11.9 100.0 Strongly disagree 161 20.8 Total 773 100.0 Homosexuals Should Have Cumulative Right to Marry (2018) Frequency Percentage Percentage Strongly agree 293 39.5 39.5 Agree 200 27.0 66.5 Neither agree nor disagree 70 9.4 75.9 Disagree 67 9.0 84.9 Strongly disagree 111 15.0 99.9 Total 741 99.9 a. What is the level of measurement for this variable? b. What is the mode for 2014? For 2018?
In order to get the mean price of homes selling in San Diego, you use 50 homes to determine the average price. Did the 50 homes represent a sample or a population? Sample Population
Electricity bills: According to a government energy agency, the mean monthly household electricity bill in the United States in 2011 was $110.55 . Assume the amounts are normally distributed with standard deviation $24.00 . Use the TI-84 Plus calculator to answer the following. The median of the bill amounts is $ .
For the month of April, a checking account has a balance of $539 for 22 days, $2318 for 3 days, and $214 for 5 days. What is the account's mean daily balance for April? The account's mean daily balance for April is approximately $ (Round to two decimal places as needed.)
A local store owner is interested in finding the mean age of her customers. She randomly surveys 82 customers and records their age. Identify the population, sample, variable, type of variable, parameter, and statistic.
None
An insurance company crashed four cars of the same model at 5 miles per hour. The costs of repair for each of the four crashes were $406, $414, $483, and $217 O . Compute the mean, median, and mode cost of repair. Compute the mean cost of repair. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The mean cost of repair is $ (Round to the nearest cent as needed.) B. The mean does not exist. Compute the median cost of repair. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The median cost of repair is $ (Round to the nearest cent as needed.) B. The median does not exist. Compute the mode cost of repair. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The mode cost of repair is $ -(Round to the nearest cent as needed.) B. The mode does not exist.
An instructor grades as follows: unit exams 20%, project 30%, and final exam 50%. A student had grades of 85, 81, and 89 (respectively) for unit exams, project, and final exam. Find the student's final course average using a weighted mean. Round to the nearest whole percentage point.
The heights, in inches, of the four members of a barbershop quartet of singers are listed below. 72,68,67,73 Find the population variance for this data set. Round to one decimal place if necessary.
In Exercises, we have provided simple data sets for you to practice the basics of finding a a.population mean.b.population standard deviation.1, 9, 8, 4, 3

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