Q1: As a project foe his statistics elass in Spring 2001, Ahmsd was supposed to tako aTAikom sample of 30 cars in the student parking lot and dctemine the make and year ofeach car.(a) Ahmed ed a random-mber table to get a random aample of 30 cars ia the parkingkt. Suppoe the kt is fill and there are 050 parking plices. Describe how he samplidthe 30 cars.(1) After getting his randem sample, Almed found that cight cars were Chavenlers.sven were Fords, tive we Tuyctas, three were BMWa, three we Handas, threewere Oldsmobies, and one was a Codillac. Make a table kor these data, and drew aar graph. Draw a cick graph showing the percentage of the total mumber of carssaplesfe) The model years kar saudt af the 30 cars are slwn bere:95 99 95 97 86 92 96 97 89 9283 92 99 87 S9 90 90 97 93 8893 95 84 95 76 96 88 99 96 93Make a freguney talla, histegram, and a fregenry polygon for thee data (ue liveclses). Describe the shape of the histogram.(4) Consider the data types: nominal, andinal, laterval, et zatio. In part (b), what type oflata do we have? Conld sn make a histogram for thee data? In part (c), what typeof data do we have? Cauld you onganize these data in a tirce graph

Given information: A random sample of 30 cars in the student parking lot is given.

Answered: Q1: As a project foe his statistics…

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 businesswoman is considering whether to open a coffee shop in a local shopping center. Before making this decision, she wants to know how much money people spend per week at coffee shops in that area. She took a random sample of 26 customers from the area who visit coffee shops and asked them to record the amount of money (in dollars) they would spend during the next week at coffee shops. At the end of the week, she obtained the following data (in dollars) from these 26 customers: 16.63 38.63 15.14 14.47 5.01 63.64 10.19 13.28 32.25 36.00 16.19 65.91 10.28 37.14 3.22 6.92 34.65 6.40 36.35 27.59 38.67 13.18 9.80 9.48 1.21 5.19 Assume that the distribution of weekly expenditures at coffee shops by all customers who visit coffee shops in this area is approximately normal. Round your answers to cents.a. What is the point estimate of the corresponding population mean?x¯=$b. Make a 99% confidence interval for the average amount of money spent per week at coffee shops by all…
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