The mean number of hours watching TV per week for a sample of 295 teenagers is 22. If the margin of error for the population mean with a 95% confidence interval is 1.9, construct a 95% confidence interval for the mean number of hours watching TV per week for all teenagers.

step-by-step explanation:

i hate black

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

the diameter is 16 cm. are you a teacher?

step-by-step explanation: