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kevin2618
21.11.2019 •
Mathematics
Apublisher reports that 44% of their readers own a personal computer. a marketing executive wants to test the claim that the percentage is actually different from the reported percentage. a random sample of 350 found that 40% of the readers owned a personal computer. determine the p-value of the test statistic. round your answer to four decimal places.
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Ответ:
P (z) = -1.5094
Step-by-step explanation:
We have to find P-value (that means we have to calculate the test value to evaluate a proportional hypothesis
From problem statement
P₀ = 0,44 44 % from publisher report
The claim :
350 = n random sample
P = 0,40 40 %
To calculate P value
P ( z ) = ( P - P₀ ) / √(P₀*Q₀)/n
then P ( z ) = - 0.04 / √(0,44)(0,56)/350 P(z) = - 0.04/0,02
P (z) = -1.5094
Ответ:
I need to know how many gallons you have.
Step-by-step explanation:
You should multiply the amount by how many gallons.