The Average Cost of Tuition, Room and Board at Community

question 63

Multiple Choice

The average cost of tuition, room and board at community colleges is reported to be $8,500 per year, but a financial administrator believes that the average cost is higher. A study conducted using 150 community colleges showed that the average cost per year is $9,000 with a standard deviation of
$1,200. Let α = 0.05.
What is the critical z-value for this test?

• A) +1.96
• B) -1.96
• C) +1.65
• D) -1.65
• E) None of these statements are true

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