Answer:
Explanation:
a. To compute the sample, mean, we add up all the weights and divide by the number of responses (in this case, 7):
(190 + 230 + 105 + 180 + 130 + 160 + 170) / 7 = 1265 / 7 ≈ 180.71
Therefore, the sample mean weight estimate is approximately 180.71 pounds.
b. To find the sample median, we need to put the responses in order from smallest to largest and then find the middle value. In this case, the ordered list of weights is:
105, 130, 160, 170, 180, 190, 230
The middle value is the average of the two values in the middle of the list, which in this case is:
(170 + 180) / 2 = 175
Therefore, the sample median weight estimate is 175 pounds.