Question: Find the critical value, t, which you multiply by the standard error to calculate the confidence interval for mu.(a) 90% confidence interval for a mean

Find the critical value, t, which you multiply by the standard

Find the critical value, t, which you multiply by the standard error to calculate the confidence interval for mu.(a) 90% confidence interval for a mean with 7 observations.t =(b) 95% confidence interval for a mean with 12 observations.t =(c) 99% confidence interval for a mean with 21 observations.

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