Mathematics, 09.04.2021 19:10 Tringirl233
City health officials will conduct a two-sample t-test for a difference in means to investigate whether
stray dogs in the city have more fleas, on average, than do stray cats. A random sample of 22 stray dogs
had a mean of 120 fleas and a standard deviation of 20 fleas. A random sample of 15 stray cats had a
mean of 100 fleas and a standard deviation of 30 fleas.
Assuming a null hypothesis of no difference, which of the following is a correct test statistic for the test?
Answers: 3
Mathematics, 22.06.2019 01:10
Use a standard normal table to determine the probability. give your answer as a decimal to four decimal places. −1.5< < 1.5)
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Mathematics, 22.06.2019 04:00
Dange measures and finds that she can do a vertical jump that is 27.5% of her height if dange is 48 inches tall how high can she jump
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Mathematics, 22.06.2019 05:30
On a parallelogram, the vector from one vertex to another vertex is (9,-2). what is the length of the side? •7•√85•18•85
Answers: 3
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