Answer:
5
Step-by-step explanation:
It mostly depends on what operation you are doing.
Answer:
The estimate of the population proportion of defective battery is 0.1333.
Step-by-step explanation:
Estimate of the population proportion of defective battery:
The estimate of the population proportion is the sample proportion.
Sample proportion:
Number of desired outcomes divided by the number of total outcomes.
Proportion of defective battery:
20 defective out of 150. Thus:

The estimate of the population proportion of defective battery is 0.1333.
The answer is 64.4 because you multiply 92 times 0.7 and get 64.4