Question: Q.2. A random sample of size 20 yields I = 3.13 and s = 1.45. Calculate a confidence interval for the population mean whose confidence

Q.2. A random sample of size 20 yields I = 3.13

Q.2. A random sample of size 20 yields I = 3.13 and s = 1.45. Calculate a confidence interval for the population mean whose confidence level is as follows: (a). 0.98 (b).0.95 [2+2]

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