When 10 Randomly Selected Car Owners Are Surveyed, It Is

question 56

Multiple Choice

When 10 randomly selected car owners are surveyed, it is found that the mean length of time they plan to keep their car is 7.01 years, and the standard deviation is 0.74 years. Assume that times are normally distributed.
-The appropriate test statistic to test the hypotheses is _____.

• A)-13.10
• B)-2.53
• C)-2.09
• D)2.09
• E)2.53

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