The scores of a certain population on the wechsler intelligence scale for children (wisc) are thought to be normally distributed with mean m and standard deviation s = 10. a simple random sample of 25 children from this population is taken and each is given the wisc. the mean of the 25 scores is x = 104.32. based on these data, a 95% confidence interval for m is a) 104.32 â± 0.78. b) 104.32 â± 3.29. c) 104.32 â± 3.92. d) 104.32 â± 19.60

1) is right

step-by-step explanation:

3030 ur welcome

step-by-step explanation:

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.