8 uMAT0 20-Summer 1 2018- Jennifer Turner Amber Houser 1 6/10/18 10:04 PM Statis

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8

uMAT0 20-Summer 1 2018- Jennifer Turner Amber Houser 1 6/10/18 10:04 PM Statistil Homework: Wk 6, HW 12,8.3-8.4 20Q, 20pts Save es Score: 0 of 1 pt | 8 of 20 (7 complete) ? HW Score: 3167%, 6 33 of 20 pts Question Help . and the times (seconds) are listed below. Use a 0.05 significance level to ome 8.3.22-T ments A group of students estimated the length of one minute without reference to a watch or clock test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably nts 72 81 42 66 40 27 59 64 63 51 64 69 91 91 63 What are the null and altenative hypotheses? A. Ho H-60 seconds H1 : ?# 60 seconds C. Ho : ? $60 seconds . H1 H 60 seconds Determine the test statistic. OB. Ho H 60 seconds H1 ? > 60 seconds D. Ho ?-60 seconds H u 60 seconds ontents uccess(Round to two decimal places as needed) Library Options Enter your answer in the answer box and then click Check Answer

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Test statistic:

t=(62.867-60)/(17.82/SQRT(15))

t=0.62

df=15-1=14

p-value=tdist(0.623,14,1)=0.5433

critical t value=tinv(0.05,14)=2.145

As,p-value>0.05,we fail to reject the null hypothesis and we can conclude that these time are from a population witha mean equal to 60 seconds.

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