A random sample of forty-two 400-meter swims has a mean time of 3.18 minutes and a standard deviation of 0.07 minutes. Construct a 90% confidence interval for the population mean time.

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

it alot will look like this 4.4

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

step-by-step explanation:

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation:

explanation:

remove parenthesis:

=

apply rule

=

multiply fractions:

=

=

divide:

=

mordancy.