Assume that a sample is used to estimate a population mean . Find the 80% confidence interval for a sample of size
670 with a mean of 49.2 and a standard deviation of 21.4. Enter your answer as a tri-linear inequality accurate to 3
decimal places.
Lionse
Points possible: 1

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a

the linear relationship that represents a variation in direct proportion is the linear function that varies according to the numbers of its domain, for example the cost of producing x number of items can be represented in direct proportion by f (x) = mx + b, where m is the constant of proportionality, x the number of articles produced and b the fixed cost

answer is  

c.

56

hope you get this right