Listed below are brain volumes (cm3) of unrelated subjects used in a study. assume the data is from a simple random sample. use a 0.01 significance level and the critical values method to test the claim that the population of brain volumes has a mean equal to 1100.0cm3. be sure to include all steps of a hypothesis test.

963
1027
1272
1079
1070
1173
1067
1347
1100
1204

table 1

step-by-step explanation:

1-16

2-32

4-64

8-128

all multiples of 16

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.