Mathematics, 11.02.2021 21:10 AreYouMyNewDad

In 2011, the industries with the most complaints to the Better Business Bureau were banks, cable and satellite television companies, collection agencies, cellular phone providers, and new car dealerships (USA Today, April 16, 2012), The results for a sample of 200 complaints are contained in the DATAfile named B8B. a. Construct a frequency distribution for the number of complaints by industry,
Category
Bank 26
Cable 42
Car 60
Collection 28
Total 156
b. Using α = .01, conduct a hypothesis test to determine if the probability of a complaint is the same for the five industries. The test-statistic is p-value- What is your conclusion?
C. Which industry has the most complaints? Dropping the industry with the most complaints using α-.05, conduct a hypothesis test to determine if the probability of a complaint is the same for the remaining four industries. The test-statistic is 7.43(to 2 decimals), What is your conclusion?

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 16:40

Which of the following is the correct equation for this function? a. y= (x+4)(x+2) b. y=x^2+ 3x – 2 c. y+ 2 = – 2(x+3)^2 d. y+ 2 = 2(x+3)^2

Answers: 1

Answer

Mathematics, 21.06.2019 18:10

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Answers: 2

Answer

Mathematics, 22.06.2019 01:40

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.

Answers: 3

Answer

Mathematics, 22.06.2019 02:00

Quadrilateral abcd is a parallelogram with diagonals that intersect at point e. which of the following statements is true?

Answers: 1

Answer

You know the right answer?

In 2011, the industries with the most complaints to the Better Business Bureau were banks, cable and...

Questions

Mathematics, 14.10.2019 17:00

Answer the question and accurately is possible i think it is b. however, i want to be sheared.