One important consideration in determining which location is best for anew retail business is the amount of traffic that passes the location eachbusiness day. Counters are placed at each of four locations on the fiveweekdays, and the number of cars passing each location is recorded in thetable below. At 0.05 level of significance, is there sufficient evidence of asignificant difference in the mean number of cars per day at the fourlocations?What is the appropriate null hypothesis for this problem? *LocationIIIIIV4548443950605049394038394445424042434443There is a significant difference in the mean number of cars per day at the fourlocations.There is no significant difference in the mean number of cars per day at the fourlocations.There are more cars passing through location II compared to the other threelocations.Retail business is best for all four locations.

Answered: One important consideration in…

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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Similar questions

A cereal company claims that the mean weight of the cereal in its packets is not 12 oz. Identify the null hypothesis Ho.
A magazine reported that at the top 50 business schools in a region, students studied an average of 18.1 hours. Set up a hypothesis test to try to prove that the mean number of hours studied at your school is different from the reported 18.1 hour benchmark. State the null and alternative hypotheses.
A sample of 75 chewable vitamin tablets have a sample mean of 251 milligrams of vitamin C. Nutritionists want to perform a hypothesis test to determine how strong the evidence is that the mean mass of vitamin C per tablet differs from 256 milligrams. State the appropriate null and alternate hypotheses.
A cereal company claims that the mean weight of the cereal in itspackets is at least 14 oz. Assuming that a hypothesis test to reject this claim has been conducted and that the conclusion is to reject the null hypothesis, state the conclusion in nontechnical terms.
A reasearcher selects a sample of 100 people to investigate the relationship between gender (male/female) and regestering to vote. The sampple consists of 40 female , of whom 30 are regestered voters, and 60 males of whom 40 are regestered voters. If these data were used for chi-square test for independence, what is the observed frequency for registered males?
a consumer advocay group tests the mean vitamin c content of 50 different brands of bottled juices using, in each case, a t-test of significance in which the null hypothesis is the mean amount of vitamin c that is on the nutrition facts label for that brand of juice. they find that two of the juice brands have statistically signifanctly lower vitamin c than claimed at the a 0.05 level. Is this an important discovery? Explain.
If a researcher were conducting a one-tailed/directional hypothesis test with an alpha of 0.01 and he chooses to place the critical region in the left-hand tail, what is the correct value for Zcrit?
A local chess club claims that the length of time to play a game has a standard deviation of more than 10 minutes. Write sentences describing type I and type II errors for a hypothesis test of this claim
A large software company gives job applicants a test of programming ability and the mean for that test has been 158 in the past. Twenty-five job applicants are randomly selected from one large university and they produce a mean score and standardndeviation of 183 and 13, respectively. Use a 0.05 level of significance to test the claim that this sample comes from a population with a mean score greater than 160. Use the P-value method of testing hypotheses.
A manufacturer claims that the mean lifetime, µ, of its light bulbs is 50 months. The standard deviation of these lifetimes is 4 months. Forty-five bulbs are selected at random, and their mean lifetime a found to be 51 months. Assume that the population is normally distributed. Can we conclude, at the 0.05 level of significance, that the mean lifetime of light bulbs made by this manufacturer differs from 50 months? Perform a two-tailed test. Then fill in the table below. Carry your intermediate computations is at least three decimal places, and round your responses as specified in the table. The null hypothesis: H0:___ The alternative hypothesis: H1: ____ The type of test statistic: Choose one ____ The value of the test statistic (round to at least three decimal places.) ______ The p-value: (round to at least three decimal places.) ____ Can we conclude that the mean lifetime of light bulbs made by this manufacturer differs from 50 months? Yes _____ or NO____

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