A simple random sample of 30 students was selected from a normally distributed population of high
school students. The following confidence intervals were calculated at 90. 95 and 99% confidence levels
to estimate the average number of hours of sleep the students got each night Determine which
confidence level goes with each contidence interval
Belveen 73 and 8.7 hours of sleep
Benveen 70 and 9.0 hours of sleeps
Between 72 and 8 8 hours of sleep

step-by-step explanation:

a rhombus is a parallelogram enjoying his symmetry.

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: