Answer:
(a) Mean and Median of type A


(b) Mean and Median of type B


(c) The claim by the public health worker is true.
Explanation:
Given



Solving (a): The mean and median of A.
Mean is calculated using:




The median is calculated using:




The 8th item is: 966
So:

Solving (b): The mean and median of B.
Mean is calculated using:




The median is calculated using:




The 8th item is: 366
So:

(c) The claim by the public health worker is true.
To do this, we simply compare the mean value of both types.
For Type A

For Type B

The claim is:



Since the inequality is true, then the claim is true