9. (6) Construct a confidence interval for Ma, the mean of the differences d for the population of paired data. Assume that the population of paired differences is
normally distributed.
Ten different families are tested for the number of gallons of water a day they use
before and after viewing a conservation video. Construct a 90% confidence interval
for the mean of the differences.
Before 33 33 38 33 35 35 40 40 40 31
After 34 28 25 28 35 33 31 28 35 33

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

a rotation about point l

step-by-step explanation:

quizlet

47

step-by-step explanation:

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.