ndependent random samples are taken at a university to compare the average GPA of seniors to the average GPA of sophomores. Given a 95% confidence interval for the difference between the true average GPAs (seniors - sophomores) of (0, 1.13), what can you conclude?
Question 9 options:
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Question 10 (1 point)
The owner of a local golf course wants to estimate the difference between the average ages of males and females that play on the golf course. He randomly samples 24 men and 21 women that play on his course. He finds the average age of the men to be 37.722 with a standard deviation of 7.091. The average age of the women was 32.214 with a standard deviation of 5.243. He uses this information to calculate a 99% confidence interval for the difference in means, (0.436, 10.58). The best interpretation of this interval is which of the following statements?
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1)
Given that:
95% confidence interval for the difference between the true average GPAs (seniors - sophomores) is (0, 1.13),
Hence we can conclude that :
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Correct option : (1)
2)Here we have:
99% confidence interval for the difference in means, (0.436, 10.58).
Hence we can conclude that:
We are 99% confident that the difference between the average age of all men and all women who play golf at the course is between 0.436 and 10.58
Correct option (5)
ndependent random samples are taken at a university to compare the average GPA of seniors to...
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