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UNAM is known to have a completion rate of 35% with a variance of 6.25%. A...

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Basic Math

UNAM is known to have a completion rate of 35% with a varianceof 6.25%. A Research from
NRCT claims that the variance of UNAM completion rate is not asreported. A sample of 26
students found to have a completion rate of 37% with a variance of7.29%. (Show all your work
and hypothesis clear steps)


a) Test the Researcher's claims at the 90% level of confidence[14]
b) Construct a 95% confidence interval for the population standarddeviation. [6]

Answer & Explanation Solved by verified expert
3.8 Ratings (447 Votes)
aH0 Null Hypothesis 2 00625HA Alternative Hypothesis n 26s2 00729Test Statistic is given by 010ndf n    See Answer
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