Mathematics, 16.04.2020 02:04 Fm610899
The compressive strength of concrete is being tested by a civil engineer who tests 12 specimens and obtains the following data: 8) 2216 2237 2225 2301 2318 2255 9) 2249 2204 2281 2263 2275 2295 a) Construct a 95% two-sided confidence interval on the mean strength. b) What assumptions, if any, are needed to construct the above interval. c) Interpret the interval
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Mathematics, 21.06.2019 21:50
Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next
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Mathematics, 21.06.2019 22:30
Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4
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The compressive strength of concrete is being tested by a civil engineer who tests 12 specimens and...
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