Test the hypothesis that the average percentage is 45

Reference no: EM131397238

A company claims that on average, when exposed to its toothpaste, 45% of all bacteria related to gingivitis is killed. You run 10 tests and find that the percentages of bacteria killed among these tests are 38, 44, 62, 72, 43, 40, 43, 42, 39, 41.

The mean and standard deviation of these values are X¯ = 46.4 and s = 11.27. Assuming normality, test the hypothesis that the average percentage is 45 with α = 0.05.

Reference no: EM131397238

Questions Cloud

Test the hypothesis that the average percentage is 45 : The mean and standard deviation of these values are X¯ = 46.4 and s = 11.27. Assuming normality, test the hypothesis that the average percentage is 45 with α = 0.05.

What follow-up procedures would you use : What follow-up procedures would you use to determine more about the nature of each exception? (Describe a follow-up procedure that would be used to determine more about the nature of each exception).

Test the hypothesis h0 : A portion of a study by Wechsler (1958) reports that for 100 males taking the Wechsler Adult Intelligent Scale (WAIS), the sample mean and variance on picture completion are X = 9.79 and s = 2.72. Test the hypothesis H0: µ ≥ 10.5 with α = 0.025.

Discuss about the escaping the marketing morass : Each member of the team must read the attached 7-page article "Escaping the Marketing Morass" about the " jobs-to-be-done" framework (championed by disruptive innovation expert Clayton Christensen for new product development). Each member of the t..

Second a problem using an algorithm : What is the largestnfor which one can solve within one second a problem using an algorithm that requiresf(n) bit operations, where each bit operation is carried out in 10-9seconds, with the functionsf(n) below? Click and drag the correct answer to..

Explain the difference between leadership and power : Explain the difference between leadership and power. How can it be balanced in the workplace?

Explaining the significance of the evidence : Automated tools help you collect and report evidence, but you're responsible for doing which of the following?

What is a negative consequence of using given strategy : For the previous exercise, rather than increase the sample size, what else might you do to increase power? What is a negative consequence of using this strategy?

User Account

All Pages