Mathematics, 26.06.2019 17:10, tkdurocher
Arandom sample of 25 fields of rye has a mean yield of 31.2 bushels per acre and standard deviation of 6.99 bushels per acre. determine the 80% confidence interval for the true mean yield. assume the population is approximately normal. (a) find the critical value that should be used in constructing the confidence interval. round your answer to three decimal places. (b) construct the 80% confidence interval. round your answer to one decimal place.
Answers: 2
Mathematics, 21.06.2019 19:30, valerieaj113
Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500
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Mathematics, 21.06.2019 22:40, zachstonemoreau
Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?
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Mathematics, 22.06.2019 00:00, kaylagoof4140
Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64
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Mathematics, 22.06.2019 00:30, hannahpalacios101
36x2 + 49y2 = 1,764 the foci are located at: a) (-√13, 0) and (√13,0) b) (0, -√13) and (0,√13) c) (-1, 0) and (1, 0)
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Arandom sample of 25 fields of rye has a mean yield of 31.2 bushels per acre and standard deviation...
Mathematics, 22.04.2021 19:20
Mathematics, 22.04.2021 19:20