Answer:
a
Step-by-step explanation:
Answer:
The point estimate for the population standard deviation of the length of the curtains is 8.58in.
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean
and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
In this problem, we have that:

The point estimate for the population standard deviation of the length of the curtains is
. So




The point estimate for the population standard deviation of the length of the curtains is 8.58in.
divide 9 by 10. (the numerator and denominator) = 9 / 10 = 0.9
add the 0.9 to the 3 so, 3 + 0.9 = 3.9
answer: 3.9
1.) 9.1 kb
2.) 12.32 cm
3.) 5.2 lb were lime flavor
4.) 132. 53 oz
5.) 10.1 kg
6.) 37.40 calories
7.) 42.70 gigabytes
8.) 13.54 inches
Just simple adding and subtracting. I hope this helps hun!