Mathematics, 05.02.2021 21:00 volleyballfun24
A large school district held a district-wide track meet for all high school students. For the 2-mile run, the population of female students participating follows a Normal distribution and had a mean running time of 8.8 minutes with standard deviation of 3.3 minutes. The population of male students participating also follows a Normal distribution and had a mean running time of 7.3 minutes with standard deviation 2.9 minutes. Suppose 8 female students and 8 male students who participated in the 2-mile run are selected at random from each population. Let xF represent the sample mean running time for the female students, and let xM represent the sample mean running time for the male students. a. Find and interpret the mean and standard deviation of the sampling distribution of the difference in sample means xF β xM. b. Find the probability of getting a difference in sample means xF β xM that is less than 0.
Answers: 2
Mathematics, 21.06.2019 19:00
Abag of jelly beans contain 13 pink, green, 20 yellow, 10 black, 7 red, and 11 orange jelly beans. approximately what percent of the jelly beans are pink and yellow?
Answers: 1
Mathematics, 22.06.2019 00:00
30 points! here is a you are the new manager at trusty goods wholesale produce. you need to figure out how to adjust the amount of produce in your notes after the events of the day: you got 5 more crates of bananas someone returned 2 crates of apples a worker dropped a crate of grapes (oh no! , you had to throw them out) you sold a crate of bananas you sold 5 crates of apples can you write an expression to describe your day using: "a" for crates of apples "b" for crates of bananas and "g" for crates of grapes? make sure the expression is in simplest form question 2 (3 points) explain your steps using sentences.
Answers: 2
Mathematics, 22.06.2019 07:30
Which values of a, b, and e represent the answer in simplest form? a = 1.0=3,0 = 2 a = 1.6= 40, c = 24 @= 1.b= 16, c= 24 @= 1,6-2,c=3
Answers: 1
A large school district held a district-wide track meet for all high school students. For the 2-mile...
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