Suppose that 19% of all sales are for amounts greater than $1,000. In a random sample of 30 invoices, what is the probability that more than six of the invoices are for over $1,000? Use the binomial approximation for the normal distribution
A) 0.4443
B) 0.9440
C) 0.5557
D) 0.0560
A
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According to the text, which of the following are the most common statistical designs?
A) factorial designs B) multiple time series designs C) posttest-only control group designs D) one-shot case studies E) regular matrix design
"Consumer packaged goods" firms, like Wal-Mart, want to monitor the sales of their brands and are not concerned about the sales of their competitor's brands
Indicate whether the statement is true or false
As production increases, what should happen to the variable costs per unit?
A) Stay the same. B) Increase. C) Decrease. D) Either increase or decrease, depending on the fixed costs.
Veronica was recently diagnosed with a heart condition. Her doctor's bill was $4,200 for the diagnostics. Her policy has a $250 deductible and a 80/20 coinsurance provision up to $10,000 and then the insurance pays 100% thereafter
In total, how much will Veronica pay for her diagnosis? A) $250 B) $4,200 C) $1,040 D) $10,000