Answer:
9 inches
Step-by-step explanation:
The population is within 6 standard deviations of the mean with a confidence of 99.7 percent, 3 above and 3 below
The standard deviation of the sample mean is equal to the population standard deviation divided by the square root of the sample size
population standard deviation = 36
sample size = 144
standard deviation of the sample mean = 36/ sqrt(144)
=36/12
=3
The margin of error is the number of standard deviations above the mean * the standard deviations
margin of error = 3 * 3
= 9 inches
He made $120.
You divide 1,320 by 22. That gives you 60. Then you times 60 by 2(which equals 120) because 60 represents the packets and he made 2 dollars per packet.
Mathematically the steps look like this:
1,320/22
=60
60(2) or 60 x 2
= 120
so $120
hope this helped!
Is that 2.75 correct because if it is his wage went down
