It is reported that the average American eats out at a restaurant 5.9 times per week. A random sample of 40 Americans showed that the average amount of times they ate out at a restaurant per week was 5.1 times with a standard deviation of 1.7. Is there enough evidence at the 5% level that the average American eats out less than 5.9 times per week? Check the conditions: a) Condition 1: Random- Stated, Condition 2: 40(5.9) = 239 >10, 40(1-5.9) = 196 >10. Condition 3: All Americans > 10(40) = 400 b) Condition 1: Random- Stated, Condition 2: Normal- sample size is greater than 30. Condition 3: All Americans > 10(40) = 400 c) Condition 1: Random- Stated, Condition 2: 40(5.9) = 239 >10, 40(1-5.9) = 196 >10. Condition 3: All Americans who eat out > 10(40) = 400 d) Condition 1: Random- Stated, Condition 2: Normal- sample size is greater than 30. Condition 3: All Americans > 10(5.9) = 59
It is reported that the average American eats out at a restaurant 5.9 times per week. A random sample of 40 Americans showed that the average amount of times they ate out at a restaurant per week was 5.1 times with a standard deviation of 1.7. Is there enough evidence at the 5% level that the average American eats out less than 5.9 times per week?
Check the conditions:
a) Condition 1: Random- Stated, Condition 2: 40(5.9) = 239 >10, 40(1-5.9) = 196 >10. Condition 3: All Americans > 10(40) = 400
b) Condition 1: Random- Stated, Condition 2: Normal-
c) Condition 1: Random- Stated, Condition 2: 40(5.9) = 239 >10, 40(1-5.9) = 196 >10. Condition 3: All Americans who eat out > 10(40) = 400
d) Condition 1: Random- Stated, Condition 2: Normal- sample size is greater than 30. Condition 3: All Americans > 10(5.9) = 59
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