Answer:
The 80% confidence interval is 
Step-by-step explanation:
From the question we are told that
The sample size is n = 23
The sample mean is 
The standard deviation is 
From the question we are told the confidence level is 80% , hence the level of significance is
=> 
Generally from the normal distribution table the critical value of 
is
Generally the margin of error is mathematically represented as
=> 
Generally 80% confidence interval is mathematically represented as
=>
Answer:
5units
Step-by-step explanation:
The triangle inscribed in the circle is a right angled triangle with angle C being 90°.
The diameter of the circle AB is the hypotenuse of the triangle.
Before we can get the radius, we need to get the diameter AB using Pythagoras theorem.
|AB|² = |AC|²+|BC|²
|AB|² = 6²+8²
|AB|² = 36+64
|AB|² = 100
|AB| = √100
|AB| = 10
Diameter of the circle = 10units
Radius = diameter/2 = |AB|/2
Radius = 10/2
Radius = 5units
This would be 16
I hope this helped!!!
Answer:
80 ounces
Step-by-step explanation:
There are 16 ounces in a pound. So to convert from pounds to ounces, you multiply 5 by 16, which is 80.
Answer:
$77
Step-by-step explanation:
First, let's find the total money they have raised.
$157 + $366 = $523
They have raised $523 in the first two weeks.
They want to raise a total of $600, so we subtract the amount they already raised from the total they want to raise.
$600 - $523 = $77
They need to raise $77 more.
