Answer:
Explanation:
Given that :
_______low tech _____consumer products
n _______14 ___________ 12
Mean ___ 157 __________218
Variance _ 1563 ________1602
The point estimate of the difference between the means of the two populations :
Difference between the sample mean of low tech and consumer product
Sample mean (low tech) - sample mean (consumer product)
157 - 218
= - 61