You have 36 observations from a distribution with an unknown mean µ. From your sample, you compute X¯ = 55 (sample mean) and s 2 = 49 (the sample variance). a. Write out a 95% confidence interval for µ. b. Write out a 99% confidence interval for µ. c. Compare your intervals from part a. and b. in terms of interval length. Why do they differ? d. Interest lies in if µ is greater than 50. Using your 95% confidence interval, in a sentence or two explain how you could answer if µ > 50.

step-by-step explanation: step 3 should really go to step seven, but anyway never mind.

1 ∠oln ≅ ∠lno

required rate of return = 0.166 = 16.6%

step-by-step explanation:

under the capital asset pricing model (capm), the required or expected rate of return for a particular security or asset is given using the formula:

required rate of return = risk-free rate + beta*(market risk premium)

we are given that;

risk-free rate = 4% = 0.04

beta = 1.4

market risk premium = 9% = 0.09

we simply plug these values into the above formula;

required rate of return = 0.04 + 1.4*(0.09)

required rate of return = 0.04 + 0.126

required rate of return = 0.166 = 16.6%

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies

what? that isnt a question

step-by-step explanation: