Answer:
I think that the correct answer is B. 29k + 4
Answer:
And we are confident that the true mean for this case is given by
Step-by-step explanation:
Data given
represent the sample mean for the WBC
population mean
s=3.9265 represent the sample standard deviation
n=187 represent the sample size
Confidence interval
The confidence interval for the true mean is given by:
[tex]\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}[/tex] (1)
The degrees of freedom, are given by:
The Confidence level is 0.90 or 90%, the significance is and , the critical value for this case would be
Replacng into the formula we got:
And we are confident that the true mean for this case is given by
Answer:
$2108.33
Step-by-step explanation:
1) if $1265 is for a year we need to find the vacation savings for a month
1265/12=105.42
since 105.42 is 5%(0.05) of the monthly take home pay then we need to find the monthly take home pay, lets take the monthly take home pay as x
so 0.05x= monthly vacation reserve money
0.05x=105.42
x=2108.33
the monthly take home pay was $2108.33
Hope this helps!