Answer:
7 - - 5 = 12
Step-by-step explanation:
It should be 3,000
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Answer:
z=3.8196
Step-by-step explanation:
-We notice that this is a normal distribution problem.
-Given the mean is $8500, standard deviation is $1200 , and n=350, the critical z-value using alpha=0.05 is calculated as:

Hence, the test statitic is z=3.8196
Answer:
i have made it in above picture hope it helps
Answer:
C.
Step-by-step explanation:
maths
22%