Mathematics, 29.06.2020 23:01 becerrarboyv9mf
A simple random sample of size n is drawn from a population that is known to be normally distributed. The sample variance, s squared, is determined to be 13.4. Complete parts (a) through(c).
(a) Construct a 90% confidence interval for sigma squared if the sample size, n, is 20. The lower bound is nothing. (Round to two decimal places as needed.) The upper bound is nothing. (Round to two decimal places as needed.)
(b) Construct a 90% confidence interval for sigma squared if the sample size, n, is 30. The lower bound is nothing. (Round to two decimal places as needed.) The upper bound is nothing. (Round to two decimal places as needed.) How does increasing the sample size affect the width of theinterval? The width increases The width does not change The width decreases
(c) Construct a 98% confidence interval for sigma squared if the sample size, n, is 20. The lower bound is nothing.(Round to two decimal places as needed.) The upper bound is nothing. (Round to two decimal places as needed.) Compare the results with those obtained in part (a)
How does increasing the level of confidence affect the confidence interval? The width increases The width decreases The width does not change
Answers: 1
Mathematics, 21.06.2019 18:30, letsbestupidcx7734
Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists
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Mathematics, 21.06.2019 19:30, Tcareyoliver
If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b
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Mathematics, 21.06.2019 19:30, kelseybell2707
If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).
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A simple random sample of size n is drawn from a population that is known to be normally distributed...
Mathematics, 05.06.2020 21:05
Mathematics, 05.06.2020 21:05