CAU HUI 16 (SINGLECHOICE)
A normal population has mean 96 and variance 14. How large must be the random sample be if we want the standard error of the sample mean to be 1.5?
7
CÂU HỎI 17 (SINGLECHOICE)
The following data represents the high ambient temperature for a particular city over the past 16 days.
52 56 56 58 59 60 62 65
69 73 73 74 76 76 77 78
Construct a stem and leaf display for this data.
5126689
610259
71334678
5126689
610259
713346678
5126689
6102599
713346778
5122669
610259
71346778
