73.
This answer was obtained using MegaStat. Your answer may be slightly different due to
rounding.
a.
Descriptive statistics
Count
Mean
sample variance
sample standard deviation
confidence interval 80.%
lower
confidence interval 80.%
upper
half-width
b.
interval.
11-Jan
16
328,706.38
21,081,255,802.65
145,193.86
280,044.45
377,368.30
48,661.92
It is possible that $300 000 is the population mean as the value is in the confidence