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3. q20 the mean and variance of a sample size 10...

# Question: q20 the mean and variance of a sample size 10...

###### Question details

(Q20)

The mean and variance of a sample size 10 are 15 and 2.5, respectively. If the population is normally distributed, the length of the 95% confidence interval of the population mean is

Select one:

1.960

2.228

2.262

2.447