Question

Testing:

H0:μ=6.915
H1:μ≠6.915

Your sample consists of 101 subjects, with a mean of 6.6 and standard deviation of 3.77.

Calculate the test statistic, rounded to 2 decimal places.

t=_______________

Answer 1

Testing:

H0 : μ = 6.915
H1 : μ ≠ 6.915

## Your sample consists of 101 subjects, with a mean of 6.6 and standard deviation of 3.77.

μ = population mean =  6.915

n = sample size = 101

xbar = sample mean = 6.6

s = sample standard deviation = 3.77

## Calculate the test statistic, rounded to 2 decimal places.

t = (xbar - μ ) * SQRT(n) / s

t = ( 6.6 - 6.915 ) * SQRT(101) / 3.77

t = ( - 0.315 * (10 .04987562) / 3.77

t = ( - 3 .165710821 / 3.77 )

t = - 0 .839711093

t = - 0.84