Answer: -3.0593
Step-by-step explanation:
The test statistic for the difference between two population mean (when population standard deviations 
are known ) is given by :-
where ,
= Sample sizes taken from two populations 1 and 2.
= Difference between two Sample mean.
= Standard deviations of populations 1 and 2.
As per given , we have
We assume that the data follows a normal distribution.
Then, the test statistic will be :-
Hence, the test statistic= -3.0593
Answer:
If the third term of an arithmetic sequence is-21and the sixth term is-6 find the first and eighth term of the sequence
Step-by-step explanation:
Answer:
67.5 degrees
Step-by-step explanation:
The angle between the 6 and the 9 = 90 degrees.
WE can say that the hour hand is ' 3/4 of 5 minutes' past the 6.
5 minutes is equivalent to 360 / 12 = 30 degrees.
Thus the angle between the 6 and the hour hand
= 30 * 3/4
= 22.5 degrees.
The required angle is 90 - 22.5
= 67.5 degrees.
Answer:
The answer for what the fraction for of 61.075 is 61 3/40
Answer:
Right
Step-by-step explanation:
You move the decimal to the right to make the decimal a whole number :)
Example below:
0.25
Move 2 places to the right
25%
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