Answered: On its municipal website, the city of…

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 data file is just a blank excel sheet, you do not need to see it to access information.

Transcribed Image Text:On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the residential water rates of other U.S. public utilities compare to Tulsa's rate? The file ResidentialWater contains the rate per 5 CCF of residential water for 42 randomly selected U.S. cities. Click on the datafile logo to reference the data. DATA file a. Formulate hypotheses that can be used to determine whether the population mean rate per 5 CCF of residential water charged by U.S. public utilities differs from the $21.62 rate charged by Tulsa. Choose the correct null hypothesis: 1. Но: д — 21.62 2. Ho : µ # 21.62 3. Но: и< 21.62 |- Select your answer - Choose the correct alternative hypothesis: 1. H: H# 21.62 2. H: µ = 21.62 3. Н,: и< 21.62 - Select your answer - b. What is the p-value for your hypothesis test in part (a)? Round your answer to four decimal places. c. At a = 0.05, can your null hypothesis be rejected? What is your conclusion? |- Select your answer - v the null hypothesis. The mean rate per 5 CCF of residential water throughout the U.S. Select your answer - v significantly from the rate per 5 CF of residential water in Tulsa. d. Repeat the preceding hypothesis test using the critical value approach. The critical value(s) is(are) - Select your answer - v. t = (to 3 decimals), Select your answer v the null hypothesis.

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