Question

1. The mean load for boxes in a company is 50 pounds. A newly made box hopes to increase the load. Ten boxes are sampled for load weight, with x̄=51, s=3.94, a=.05. Based on the results that follow, will the mean load be greater than 50 pounds?

   1. H0:_______

   2. H1:_______

   3. t-value (statistic)=___________

   4. t-value (critical)=__________

Reject or fail to reject___________

Answer 1

This is the right tailed test .

The null and alternative hypothesis is

H₀ : = 50

H_a : > 50

Test statistic = t

= ( - ) / s / n

= (51 - 50) / 3.94 / 10

t-value(statistic) = 0.803

t-value (critical) = 1.833

fail to reject