Mathematics, 17.09.2021 14:00, JvGaming2001
A drugstore manager needs to purchase adequate supplies of various brands of toothpaste to meet the ongoing demands of its customers. In particular, the company is interested in estimating the proportion of its customers who favor the brand of toothpaste, Aquafresh. The Data sheet of the file P08_15.xlsx contains the toothpaste brand preferences of 200 randomly selected customers, obtained recently through a customer survey. Calculate a 95% confidence interval for the proportion of all of the company’s customers who prefer Aquafresh toothpaste. Round your answers to three decimal places, if necessary. Aquafresh Lower Limit Upper Limit How might the manager use this confidence interval for purchasing decisions? The confidence interval gives the manager an estimate of what the SelectdemandsupplyItem 3 for the product will be. If the interval is too SelectwidenarrowItem 4 , the manager can always sample SelectmorelessItem 5 customers.
Answers: 1
Mathematics, 21.06.2019 15:20, Graciesett4072
Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8
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Mathematics, 21.06.2019 18:00, cexe2630
The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old
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Mathematics, 21.06.2019 19:10, Lewis5442
Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?
Answers: 1
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