The answer is 3 1/2
I knowwww it is
Answer:
Z=±1.65
Step-by-step explanation:
Some previous concepts
The p-value is the probability of obtaining the observed results of a test, assuming that the null hypothesis is correct.
A z-test for one mean "is a hypothesis test that attempts to make a claim about the population mean(μ)".
The null hypothesis attempts "to show that no variation exists between variables or that a single variable is no different than its mean"
The alternative hypothesis "is the hypothesis used in hypothesis testing that is contrary to the null hypothesis"
System of hypothesis
Null hypothesis: 
Alternative hypothesis: 
If the random variable is distributed like this: 
The significance level provided is
and the value of
.
Since we are conducting a bilateral test, then we have two critical values. We need to find two quantiles that accumulates 0.05 of the area on the tails of the normal standard distribution. And in order to find it we can use the following excel codes:
"=NORM.INV(0.05,0,1)" , "=NORM.INV(1-0.05,0,1)"
And we got this:
and 
So the correct answer for this case is:
Z=±1.65
Add the real parts and the imaginary parts separately and divide each by 2


=(1+3i)
The answer is m^2/n so basically the second option.
Well you could simplify the fraction(s) in question to their smallest form (where you can’t divide anymore without getting decimal answers) and see if they are equal to 1/4.
For example 2/8, you can divide both sides by 2 to simplify to 1/4, thus 2/8 is equivalent to 1/4.
Hope this helps!