16 roftion ot er adule population rom th ll a miajoe hoepital wisest law Larg a

Question

16

roftion ot er adule population rom th ll a miajoe hoepital wisest law Larg a samgle in needed in ef the Uinited States that has high b be 90% confident that the sample propor- tse proportion more than 5%? 0.5 and n -12 ibuted population and constract the indicated con 14) Find the critical values, X for and Assume the sample is taken from a normally da for the popuisation varianer gd and dhe 15) Construct the indicated confiden. e the sample is from a normally distributed 15) population standard deviation o deviation o. Assusme theulationstract population -0.95,2 15.3,n -25 miv selected adult males are listed below. Construct a 16 16) The heights (in inches) of 20 faskatiance, o2 99% confidence interval for the 71 70 72 71 706973 1 12 67 71 70 74 60 65 71

Explanation / Answer

16 Solution:-Given that 70,72,71,70,69,73,69,68,70,71,67,71,70,74,69,68,71,71,71,72

var = 2 = 2.9763

=> ((n-1) * 2)/X2R <  2 < ((n-1) * 2)/X2L

= (19*2.9763)/38.58 <  2 < (19*2.9763)/6.844  

= 1.4657   <  2 <  8.2627

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