Answer:
Test statistic Z = 2.1097
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that size of the sample 'n' = 160
Given that mean of the Population(μ) = 5.3pounds/square inch
The Standard deviation of the population(σ) = 0.6
Mean of the sample(x⁻) = 5.4
Level of significance =0.1
<u><em>Step(ii):-</em></u>
Test statistic


Z = 2.1097
<u><em>Final answer</em></u>:-
Test statistic Z = 2.1097
I’m just “answering” this because brainless told me to help out 4 ppl so
Answer:
we know that
The radicand of the function must be greater than or equal to zero
so
the solution is the interval---------> [-6,∞)
therefore
the answer is
The domain are all values of x greater than or equal to minus six
It is the multiplying factor for the whole equation if that makes sense.