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State the null and alternative hypotheses in words

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Two owners at a carwash facility were discussing which type of car wash was the most popular with clients: Basic, Superior, and Ultimate. Owner A thought that the three types of car washes are equally popular but Owner B didn't think so. To settle their argument, they decided to tally the number of each type of car wash chosen for a whole day. There were 90 customers at the car wash that day: 51 selected the Basic wash, 25 chose the Superior wash, and 14 opted for the Ultimate wash. Conduct a Chi-Square Test for Goodness of Fit using a = .05 as the significance level.

What is the variable in this test? What type of variable is it (nominal, ordinal, or continuous)?

State the null and alternative hypotheses in words

Calculate X2 statistic

Calculate the degrees of freedom and then identify the critical value

Compare the X2 statistic with the critical value, then report the hypothesis test result, using "reject" or "fail to reject" the null hypothesis in the answer

Explain the conclusion in a sentence or two

Reference no: EM132409033

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