Statistics question related to estimation and hypothesis
The age, x years of each women is a MBA class in the year 2016 was recorded. In random
sample of 250 women it was found that ∑x=43205 & ∑x2= 7469107. Calculate
i. An unbiased estimate of µ and σ2
ii. Construct 95% confidence interval for µ
iii. By using Confidence interval would you accept the hypothesis that µ=29 years.
iv. Carry out a significance test at 5% level of significance that µ=31 against the
alternative µ≠31
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hypothesis testing
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