Question: Let the variable T stand for a student t-distributed variable. Find the following: a. in a sample of 20 students, the t-value to use to

Let the variable T stand for a student t-distributed variable. Find the following:

a. in a sample of 20 students, the t-value to use to determine a 95% confidence interval for a mean

b. in a sample of 30 students, the t-value to use to determine a 98% confidence interval for a mean

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