A toothpick manufacturer wants every box to contain exactly (on average) 500 toothpicks. In a random sample of 25 boxes, mean is 498 toothpicks and standard deviation is 9 toothpicks.
One sample t-test.
Test statistic:
Degrees of freedom:
P-value:
Since the p-value is greater than 0.05, fail to reject the null hypothesis.
There is no sufficient evidence that the mean number of toothpicks is different of 500.
Comments
Leave a comment