Question #70a57
1 Answer
Aug 9, 2015
Critical value is 1.51
Explanation:
The confidence interval is 87%. It is the same as 0.87.
Consult the Area Under Normal curve table. It is available in all the statistics book.
Look for a value in the probability area that is very close to 0.435. It is 0.4345 in the table. Find the corresponding z - value .
In the picture given below, follow the arrow mark.
