4. The cost of pizzas at two different shops is shown in the graph and table below. Choose the true statement from the choices below. *
Pizza Shop A
Pizza Shop B
Pizzas
Pizzas
Cost ($)
2.
11
3
16 50
Cost (dollars)
35
30
25
20
15
10
5
7
38.50
.
0 1 2 3 4 5 6 7 X
Number of pizzas
A. If you buy 2 pizzas at each shop, you will pay the same price

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95