1-2. The best estimate for the population mean would be sample mean of 60 gallons. Since we know that the sample mean is the best point of estimate. Since sample size n=16 is less than 25, we use the t distribution. Assume population from normal distribution.
3. Given a=0.1, the t (0.05, df = n – 1 = 15)=1.75
4. xbar ± t*s/vn = 60 ± 1.75*20/4 = ( 51.25, 68.75)
5. Since the interval include 63, it is reasonable.
The answer is B
Because when you graph it in the calculator you get x=-136 and that goes to one to one function on the graph
The answer is 93. The angle looks really close to 90 and 93 is the closest.
The domain would be -2, the x-intercept.
