<span>Given:
check written year 1 year 2 year 3
yes 225 175 125
no 275 325 375
</span><span>The expected number of shoppers who pay by check in year 1 if there is no difference in the proportion of shoppers who pay by check among the three years is 175.
Each year has 500 customers, and its proportion of customers paying in check gradually decreased from 45% to 25%. If there is no difference in proportion, I am assuming that the data is averaged. Thus, (225+175+125) / 3 = 525 / 3 = 175.</span>
Answer: B
The government cannot control interest rates and that is the reason is why the government cannot completely control the business cycle. This is so because interest rate controls the rate of consumer spending, borrowing and spending. Say interest is low, people will borrow more and spend more and this will have an impact in the rate of employment. Hence, in short if the government cannot control interest rate, everything depending on it, the economic cycle cannot be determined.
Answer: The correct answer is security.
Explanation: The bring your own device phenomenon has raised security concerns for companies. It is very difficult for businesses to maintain the security of their IT systems. When companies allow their data to be accessed by personal devices it becomes very difficult for them to insure that the data stays safe on devices that they have no control of.
Answer:
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False ...................
