Question

The weight of gravel, in kilograms, collected by a power shovel follows a normal distribution with unknown mean ( mu ) and standard deviation 50 kg. A random sample of 20 collections has a mean of 1030 kg.

(a) What is the point estimate of the mean weight of gravel that the shovel can collect?
a) ( 1030 ) kg
b) ( 1060 ) kg
c) ( 1050 ) kg
d) ( 1020 ) kg

Answer 1

The point estimate of the mean weight of gravel that the shovel can collect is 1030 kg.

Step-by-step explanation:

The point estimate of the mean weight of gravel that the shovel can collect is (a) (1030) kg.

To calculate the point estimate, we use the formula:

Point Estimate = Sample Mean

Given that the sample mean is 1030 kg, the point estimate of the mean weight of gravel that the shovel can collect is 1030 kg.