The line equation is Y= - 1/2x +4
Answer:
A. 3 * 6
Step-by-step explanation:
43 * 6 = (40 + 3) * 6 = 40 * 6 + 3 * 6
You have to add them all together to get 25. 16 students did not say blue, so you have to divide 16 by 25. 64% did not choose blue
The predicted value of hardness at 37 hours is 243.87 and an 85% confidence interval for the mean hardness is (242.12, 245.61). At 41 hours, the predicted hardness is 252 and an 85% confidence interval for mean hardness is (249.83, 254.18). The confidence interval for X is equals to 41 which is wider because the value 41 is farther away from the sample mean X than is 37. As an outcome, the standard error for the prediction is larger.
