Answer:
√72 x 4 = roughly 33.94 by reverse pythagorean
Answer:
(20.532 , 21.468)
Step-by-step explanation:
Enter data into L₁
CL= 0.95
df= 3
Distribution: xbar ~ t₃
Calculator commands (for TI only): [Stat],[TESTS],[TInterval],[Data],(List: L₁),(Freq:1),(C-Level:0.95),[Calculate]
Confidence interval (20.532,21.468)
We can conclude that the true population mean for bags of potatoes labeled 20.0 pounds is between (20.532,21,468) with a 95% confidence level.
To find the state tax you have to take 7 percent of 124.95
Then add the tax to the amount he paid then add the charges for shipping
7/100=.07
124.95x.07=8.74
8.74+124.95+10=143.69
so he paid in total $143.69