The proportion given in the problem statement ...
... 3 days/(1 gallon) = 5 days/(x gallons)
can be multiplied by (x gallons/day) to get ...
... 3x = 5
Divide the number absent by the total and multiply by 100
P=6/25 x 100% = 24%
Range means highest value minus lowest value in a data collection
highest value = 18
lowest value = 2
Range = 18-2 = 16
Yes, the confidence interval provides evidence that the average has changed. The prior year’s population mean expenditure per household, $632, is not within the 95% confidence interval, (635, 663).
I got this as my answer maybe it will help
