Mathematics, 15.07.2019 19:20 mat1413
The age of the residents in a certain town is normally distributed with an unknown mean μ and unknown standard deviation σ . the mayor knows that the average age 10 years ago was 35, but she thinks that the average age is now lower. to test this claim, she acquires a random sample of 40 residents which has a sample mean age of 36 years and a sample standard deviation of 6 years. if the mayor uses technology, which of the following is the p‑value she will use to test her claim? 0.1460.2920.1490.298
Answers: 3
Mathematics, 21.06.2019 23:40
The function f(x)= -(x+5)(x+1) is down. what is the range of the function?
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Mathematics, 22.06.2019 03:30
Acollege is selling tickets for a winter fund-raiser. one day, krissa sold 14 adult tickets and 8 student tickets for a total of $376. the next day, she sold 7 adult tickets and 11 student tickets for a total of $272. krissa wanted to find the price of one adult ticket, a, and the price of one student ticket, s. she wrote and solved the following system of equations.
Answers: 1
Mathematics, 22.06.2019 05:40
The weight of a small starbucks coffee is a normally distributed random variable with a mean of 340 grams and a standard deviation of 11 grams. find the weight that corresponds to each event. (use excel or appendix c to calculate the z-value. round your final answers to 2 decimal places.)highest 30 percent middle 70 percent highest 90 percent lowest 20 percent
Answers: 3
The age of the residents in a certain town is normally distributed with an unknown mean μ and unknow...
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