Answer: x = 27/2
Step-by-step explanation:
2/3x-2=7
2/3x=9
2/3x=27/3
2/3x(3/2)=27/3(3/2)
x=81/6
x=27/2
The angle is 90 degree...
Answer:
Value of test statistics = 2.30
Step-by-step explanation:
We are given that for a sample of 35 items from a population for which the standard deviation is 20.5, the sample mean is 458.
Also, Null Hypothesis,
:
= 450
Alternate Hypothesis,
:
450
The test statistics that will be used here is One sample t-test statistics;
T.S. =
~ 
where,
= sample mean = 458
s = sample standard deviation = 20.5
n = sample of items = 35
So, test statistics =
~ 
= 2.30
Therefore, the value of test statistics is 2.30 .
The answer to this question is x=54
2x+2=3x-52
2x=3x-54
-x=-54
x=54
I hope this helps!!!!!