SOLUTION: You wish to test the claim that μ = 1420 at a level of significance of α = 0.01 and are given sample statistics n = 35, x = 1390. Assume the population standard deviation is

SOLUTION: You wish to test the claim that μ = 1420 at a level of significance of α = 0.01 and are given sample statistics n = 35, x = 1390. Assume the population standard deviation is

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Question 1150381: You wish to test the claim that μ = 1420 at a level of significance of α = 0.01 and are given
sample statistics n = 35, x = 1390. Assume the population standard deviation is 82. Compute the
value of the standardized test statistic. Round your answer to two decimal places
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
use a z=(x-mean)/sd/sqrt(n)
z=-30/82/sqrt(35)
=-30*sqrt(35)/82
=-2.16
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