Answer:
Answer is more at 97.
Step-by-step explanation:
(84+89+70+x)/4>85
(243+x)/4>85
243+x>340
x>340-243
x>97
Answer:
The standard error of the proportion is 0.0367.
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.
For a proportion p in a sample of size n, the standard error is 
In this question:

So

The standard error of the proportion is 0.0367.
Step-by-step explanation:
A
=
h
b
b
2
=
11
·
22
2
=
121
cm²
Area of a square= length^2
16 x length^2 = 25 square inches
length^2 = 25/16 square inches
length = 5/4 inches (B)
Answer:
b is 125
Step-by-step explanation: