y utrgv.eduE Announcements - MATH-1342 xA ALEKS - Raul Barrera - Learni www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNsikasNW8D8A9PVVR18Z4766mukQengouPuJ6IEWNMG9szFIOinqsu7WHMBju03qoCLWNwiSQ-k5A0qYtzosblyoviLEWFBpO CONFIDENCE INTERVALS AND HYPOTHESIS TESTINGOn O ODConfidence interval for the population mean: Use of the t..A toy manufacturer wants to see how long, on average, a new toy captures children's attention. He tests 20 children selected at random and finds that theirmean attention span is 32 minutes with a standard deviation of 4 minutes. If we assume that attention spans are normally distributed, find a 95% confidenceInterval for the mean attention span of children playing with this new toy. Then find the lower limit and upper limit of the 95% confidence Interval.Carry your Intermedlate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.)Lower limit: lUpper limit:ExplanationCheck2021 McGraw-Hil Education. All Rights ReservedTerms of Use Pivacy Access%23945

Name: y utrgv.eduE Announcements - MATH-1342 xA ALEKS - Raul Barrera - Lear
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Description: y utrgv.eduE Announcements - MATH-1342 xA ALEKS - Raul Barrera - Learni www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNsikasNW8D8A9PVVR18Z4766mukQengouPuJ6IEWNMG9szFIOinqsu7WHMBju03qoCLWNwiSQ-k5A0qYtzosblyoviLEWFBpO CONFIDENCE INTERVALS AND HYPOTHESIS

Given data,x=32s=4n=20df=n-1=19α=0.05t-critical value is tc=2.093

Math

Statistics

A toy manufacturer wants to see how long, on average, a new toy captures children's attention. He tests 20 children selected at random and finds that their mean attention span is 32 minutes with a standard devlation of 4 minutes. If we assume that attention spans are normally distributed, find a 95% confidence Interval for the mean attention span of children playing with this new toy. Then find the lower limit and upper limit of the 95% confidence interval. Carry your Intermedlate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: | Upper limit: