Consider statistics on plasma levels for a random sample of nine 17 year old males and six 17 year old females. Test if two means different, µ1≠µ2, at 5%. Hint. Use a degrees of freedom of 5. Male Female Sample size 9 6 Sample mean 3.259 1.413 Sample standard deviation 0.4 0.22 a. At the 0.05 level of significance, the data provide sufficient evidence to conclude that average male plasma amount is not different from the average female plasma amount. b. At the 0.05 level of significance, the data provide insufficient evidence to conclude that average female plasma amount is equal to the average male plasma amount. c. At the 0.05 level of significance, the data provide sufficient evidence to conclude that average male plasma amount is different from the average female plasma amount. d. At the 0.05 level of significance, the data provide insufficient evidence to conclude that average male plasma amount is different from the average female plasma amount.
Consider statistics on plasma levels for a random sample of nine 17 year old males and six 17 year old females. Test if two means different,
µ1≠µ2, at 5%. Hint. Use a degrees of freedom of 5.
| Male | Female | |
| 9 | 6 | |
| Sample mean | 3.259 | 1.413 |
| Sample standard deviation | 0.4 | 0.22 |
a. At the 0.05 level of significance, the data provide sufficient evidence to conclude that average male plasma amount is not different from the average female plasma amount.
b. At the 0.05 level of significance, the data provide insufficient evidence to conclude that average female plasma amount is equal to the average male plasma amount.
c. At the 0.05 level of significance, the data provide sufficient evidence to conclude that average male plasma amount is different from the average female plasma amount.
d. At the 0.05 level of significance, the data provide insufficient evidence to conclude that average male plasma amount is different from the average female plasma amount.
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