Mathematics
Mathematics, 25.11.2019 20:31, afarra4515

According to howtoadvice. com, the average price charged to a customer to have a 12 by 18 wall-to-wall carpet shampoo cleaned is about $50.
suppose that a start-up carpet-cleaning company believes that in the region in which it operates, the average price for this service is higher.
to test this hypothesis, the carpet-cleaning company randomly contacts 23 customers who have recently had a 12 by 18 wall-to-wall carpet shampoo cleaned and asks the customers how much they were charged for the job.
suppose the resulting data are given. the observed sample price average is $52.174 and the population standard deviation price is $3.49.
use a 10% level of significance to test the hypothesis.
assume that such prices are normally distributed in the population.

(1). manually solve the problem with the steps shown in the class. what is the statistical decision and business decision?

(2). import data set carpetcleanprice. csv file to r studio. create a r script file and write the correct r commands for solving this problem. what is the p value? what is the statistical decision and business decision? (to answer the p value, statistical and business decision, you could write the answers as comments after the r commands)

answer
Answers: 1

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