7.25 Significance test for the average number of seeds.
Refer to the previous two exercises.
seedcnt
7.25
(a) 0.025 < P-value < 0.05. The data are significant at the 5% level, and there is evidence that the average number of seeds in a 1-pound scoop is greater than 1550. (b) , 0.10 < P-value < 0.15. The data are not significant at the 5% level, and there is not enough evidence that the average number of seeds in a 1-pound scoop is greater than 1,560. (c) Because 1550 is outside the 90% confidence interval, the one-sided significance test rejects the null hypothesis of 1550 but because 1560 is inside the 90% confidence interval, the one-sided significance tests fails to reject a null hypothesis of 1560.