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Answer to Question #268488 in Statistics and Probability for Lia

Question #268488

A study was carried out to estimate the mean height in cm of 15 years old students in

SMK Jeli. A random sample of 100 students was selected. Previous studies indicate that

the population variance of the height of such students is 80cm. Suppose the sample

mean height was 145cm. Find a 95% confidence interval for the mean height of all 15

years old students in the school.


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