Mathematics, 21.12.2019 00:31 Mranthony4565
The average length of a certain species of butterfly is believed to be 0.75 inches. a researcher believes that actually the average length should be higher than what is believed. to test the hypothesis h 0: μ = 0.75 against h a: μ > 0.75, the researcher takes a sample of 36 butterflies and found that the mean from the sample is 0.65 inches and the sample standard deviation s=1.99 inches. what test should you use for this test? a. t-testb. z-test
Answers: 2
Mathematics, 21.06.2019 17:00
Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?
Answers: 1
Mathematics, 21.06.2019 17:00
There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y
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Mathematics, 21.06.2019 17:10
The frequency table shows a set of data collected by a doctor for adult patients who were diagnosed with a strain of influenza. patients with influenza age range number of sick patients 25 to 29 30 to 34 35 to 39 40 to 45 which dot plot could represent the same data as the frequency table? patients with flu
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Mathematics, 21.06.2019 19:00
Witch represents the inverse of the function f(x)=1/4x-12
Answers: 1
The average length of a certain species of butterfly is believed to be 0.75 inches. a researcher bel...
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