The Census at Schools program collects data each year from students enrolled in primary and secondary schools in many different countries. In a random sample of 100 students selected from participating schools in Canada, the sample mean arm span of boys is 157.3 cm and the sample standard deviation is 15.43 cm. Find the 95% confidence interval for the population mean span of boys from participating schools in Canada. Use t*

answer: dead jah

step-by-step explanation:

bullet + jah= dead jah

$119.20

step-by-step explanation:

$372.50 - 60% off is $149. $149-20% off is $119.20

see below

step-by-step explanation:

x+2> 6

subtract 2 from each side

x+2-2 > 6-2

x > 4

there is an open circle at 4 since is it is greater than and the line goes to the right

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.