Answer: c. 3.01
Step-by-step explanation:
The test statistic for difference between two population mean (when population standard deviation is known) is given by :
, where 
= Size of first sample
= Size of second sample
= Difference between two sample mean.
= standard deviation for population 1.
= standard deviation for population 2.
As per given , we have
Substitute these values in formula , we get
Hence, the value of the test statistic is <u>3.01</u>.
Hence, the correct option is c. 3.01 .
I like to start with changing fractions to decimals. It seems easier that way.
5/8 = 0.625 cups
Now divide 4 by 0.625
4 / 0.625 = 6.4
Noor can offer 6 cups with an extra 2/5 of a cup left. He can offer the 2/5 of a cup to a friend, so he can offer 7 friends some hot chocolate!
Use a calculator punch in the numbers
Answer:
$97,958.42
Step-by-step explanation:
To solve this problem we can use the compound interest formula which is shown below:
<em>P = initial balance
</em>
<em>r = interest rate
</em>
<em>t = time
</em>
<em>
</em>
First change 6.5% to its decimal form:
6.5% -> 
-> 0.065
Next plug in the values:
They have to pay back $97,958.42
Answer:
(a+c)+7
Step-by-step explanation:
this is called the Associative Property
(x+y)+z=x+(y+z)
