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Tribhuvan university > BIT - BIT Curriculum > Basic Statistics > Old Questions > Model Question

Basic Statistics - Old Questions

Syllabus Notes Old Questions Unit Wise Questions Question Bank

11. Assuming that the population is normally distributed, construct 95% confidence interval for the population mean using the following sample data. 

        

Again in the same data set, replace the value of 20 by 6, then compute the confidence interval for the mean. Explain why there is considerable difference in the confidence interval?

5 marks | Asked in Model Question