A Nationwide Survey of College Students Was Conducted and Found

question 73

Multiple Choice

A nationwide survey of college students was conducted and found that students spend two hours
Per class hour studying. A professor at your school wants to determine whether the time students
Spend at your school is significantly different from the two hours. A random sample of fifteen
Statistics students is carried out and the findings indicate an average of 1.75 hours with a standard
Deviation of 0.24 hours.
Test at the 5% level of significance.

• A) The critical value of t is -4.03. The calculated value of t is ±2.145.
• B) The critical value of t is ±2.145. The calculated value of t is -4.03.
• C) The critical value of t is 1.761. The calculated value of t is -4.03.
• D) The critical value of t is ±1.761. The calculated value of t is -1.041.
• E) The t-test should not be used. Rather, use the z-test.

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