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STAT 250-004 Data Analysis Assignment 4

Solved assignment for STAT 250-004, covering data analysis techniques.

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1Priscilla BongunguSTAT 250-004Professor: K. StrazzeriData Analysis Assignment 4Problem1: Got MilkAccording to the U.S. Department of Agriculture, 58.8% of males between 20 and 39 years oldconsume the minimum daily requirement ofcalcium. After an aggressive “Got milk” advertisingcampaign, the USDA conducted a survey of 55 randomly selected males betweenthe ages of 20and 39 and foundthat 36 of them consume the recommended daily allowance of calcium.a)Construct a 90% confidence interval for the above data. Show your work using theformulas and verify your work usingStat Crunch.Givenproportion of males consume calcium=58.8% =0.588;sample size55no.of males consume recommended = 36ˆsample proportion= 36/55=0.65454510%0.1ˆˆ10.65454510.6545450.06411955PnpgivenppSEnˆˆ1ˆ90% confidence interval is*z critical value at 90% confidence is 1.6448590% confidence interval is0.54908,0.760011pppznb)At the=0.01, is there evidence to conclude that the percentage of males between theages of 20 and 39 who consume the recommended daily allowance of calcium hasincreased?Conduct a full hypothesis test by following the steps below.

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