A hypothesis test is to be performed. State the null and alternative hypotheses.A health insurer has determined that the "reasonable and customary" fee for a certain medical procedure is 
They suspect that the average fee charged by one particular clinic for this procedure is higher than 
The insurer wants to perform a hypothesis test to determine whether their suspicion is correct.
A. Null hypothesis: mean fee < $1200
Alternative hypothesis: mean fee > $1200
B. Null hypothesis: mean fee > $1200
Alternative hypothesis: mean fee = $1200
C. Null hypothesis: mean fee = $1200
Alternative hypothesis: mean fee ? $1200
D. Null hypothesis: mean fee = $1200
Alternative hypothesis: mean fee > $1200
Answer: D
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Solve the problem.A plane flies 420 miles with the wind and 350 miles against the wind in the same length of time. If the speed of the wind is 22 mph, what is the speed of the plane in still air?
A. 232 mph B. 242 mph C. 247 mph D. 267 mph
Solve the formula for the specified variable.F = 
C + 32 for C
A. C = 
(F - 32)
B. C = 
C. C = 
D. C = 
(F - 32)
Find the difference.-364 - 927
A. -463 B. -563 C. 563 D. -1291
Find the percent.What percent of 180 pizzas is 12 pizzas?
A. 6%
B. 
%
C. 
%
D. 
%