A recent CBS News survey reported that 66% of adults felt the U.S. Treasury shou

Question

A recent CBS News survey reported that 66% of adults felt the U.S. Treasury should continue making pennies.

How many of the 11 would we expect to indicate that the Treasury should continue making pennies? (Round your answer to 2 decimal places.)

What is the standard deviation? (Round your answer to 4 decimal places.)

What is the likelihood that exactly 5 adults would indicate the Treasury should continue making pennies? (Round your answer to 4 decimal places.)

What is the likelihood at least 5 adults would indicate the Treasury should continue making pennies? (Round your answer to 4 decimal places.)

Suppose we select a sample of 11 adults.

Explanation / Answer

p= 0.66 a) 1) n= 11 mean = np 7.26 a) 2) sd = sqrt(npq) =SQRT(11*0.66*(1-0.66)) 1.571114 b) p(x=5)= =BINOM.DIST(5,11,0.66,FALSE) 0.089379 c) p(x>=5) =1-p(x

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