Mathematics, 30.10.2019 02:31 dee1334
In green bay and appleton, wisconsin, the average height of hemlock trees is normally distributed within each city. lilith is trying to determine if one town’s trees are taller than the other town’s trees before deciding where to start her tree farm. her horticultural knowledge reveals that the standard deviation of the height of similar types of trees is the same everywhere in wisconsin. so she conducts a test to compare the two populations assuming the same variance within each city. in green bay, lilith sampled 100 trees and found that the average height of trees is 20 feet. in appleton, she also sampled 100 and found that the average height is 21 feet. in the pooled sample, the estimated standard deviation is 2 feet. what is the absolute value of the t-statistic if the null hypothesis is that the difference between the appleton and green bay trees height is exactly 3 feet?
Answers: 3
Mathematics, 21.06.2019 15:20
At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.
Answers: 2
Mathematics, 21.06.2019 16:40
14 pointslet x be the seats in the small van and y the seats in the large van. how many seats does the large van have? a company uses two vans to transport worker from a free parking lot to the workplace between 7: 00 and 9: 00a.m. one van has 9 more seats than the other. the smaller van makes two trips every morning while the larger one makes only one trip. the two vans can transport 69 people, maximum.how many seats does the larger van have?
Answers: 1
Mathematics, 22.06.2019 00:30
20 points plus brainliest andwer plus my hover hoard im v desperate ! evaluate the polynomial for x=-2 in the equation -3x^3+7x^2-7x-1 (simplify your answer)
Answers: 1
In green bay and appleton, wisconsin, the average height of hemlock trees is normally distributed wi...
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