Mathematics, 27.11.2019 05:31 21marmong
Apaint manufacturer made a modification to a paint to speed up its drying time. independent simple random samples of 11 cans of type a (the original paint) and 9 cans of type b (the modified paint) were selected and applied to similar surfaces. the drying times, in hours, were recorded. the summary statistics are as follows. type a type bx1 = 76.3 hrs x2 = 65.1 hrss1 = 4.5 hrs s2 = 5.1 hrsn1 = 11 n2 = 9the following 98% confidence interval was obtained for μ1 - μ2, the difference between the mean drying time for paint cans of type a and the mean drying time for paint cans of type b: 4.90 hrs < μ1 - μ2 < 17.50 hrswhat does the confidence interval suggest about the population means?
Answers: 2
Mathematics, 21.06.2019 16:00, alexandergoetz8239
The level of co2 emissions, f(x), in metric tons, from the town of fairfax x years after they started recording is shown in the table below. x 2 4 6 8 10 f(x) 26,460 29,172.15 32,162.29 35,458.93 39,093.47 select the true statement.
Answers: 1
Mathematics, 21.06.2019 17:00, alexabdercmur
You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?
Answers: 2
Mathematics, 21.06.2019 17:30, QueenNerdy889
Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)
Answers: 3
Apaint manufacturer made a modification to a paint to speed up its drying time. independent simple r...
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