Answer:
Step-by-step explanation:
Given
Required
Solve
Collect like terms
Subtract 3.8 from both sides
Divide through by 2
Please explain how to find the measurement
1 answer:
You might be interested in
Step-by-step explanation:
x and 63° are subtended by the same arc, therefore their measures will be equal.
Therefore, x = 63°
If ages are normally distributed then using a significance level of 0.05 , we can claim that the population mean is greater than 24.
Given sample mean of 25 years , sample size of 16 ,standard deviation of 2 years.
We have to find whether the population average is greater than 24.
We have to use t test because n is less than 30. It is right tailed.
We have to first form Hypothesis.
:μ>24,
:μ<24.
t=X-μ/S/
t critical at 5% significance level and degree of freedom=15 (16-1)=1.7531
t=24-25/2/
=-1/0.5
=-2
Because 1.7531 is greater than -2 so we will accept the null hypothesis.
Hence we can say that the average of population is greater than 24.
Learn more about t test at brainly.com/question/6589776
#SPJ4