Question

Given the following data, assess the 95% confidence interval. Use Table B to find the t-score. X ̅= 10, s = 2, and N = 30

TD 0 Insert Table Chart Text Shape Media Comment 10. Given the following data, assess the 95% confidence interval. Use Table B to find the t-score. *Worth 3 points. (Show your work or you will not receive full credit.) X-10, s = 2, and N = 30

Answer 1

Answer:

Given,

xbar = 10

Standard deviation = 2

Sample n = 30

degree of freedom = n - 1

= 30 - 1

= 29

alpha = 0.05

t(alpha/2 , df) = t(0.05/2 , 29)

= +/- 2.04523

Critical t value = 2.045

test statistic = (x - u)/(s/sqrt(n))

substitute values

= (10 - 0)/(2/sqrt(30))

test statistic = 27.39

Critical t value = 2.045