OK. Great. Thanks for sharing. Do you have a question to ask ?
My hunch is that you want to know what the "number" is.
Here's how to set it up and solve it:
"a number" . . . . . . . . . . . . . . . Q
"The difference of
a number and 17" . . . . . . . . . . Q - 17
"eight times the difference" . . . 8 (Q - 17)
"is thirty" . . . . . . . . . . . . . . . . . . 8 (Q - 17) = 30
Eliminate parentheses on the left side:
8Q - 136 = 30
Add 136 to each side: 8Q = 166
Divide each side by 8 : Q = 20.75
Looking at this, it seems like B would be your answer.
No.
The first two is okay. Then
Then
4 | 64
8|128
9|144
10|160
Answer and Explanation:
Given : A lab technician is tested for her consistency by taking multiple measurements of cholesterol levels from the same blood sample.
The target accuracy is a variance in measurements of 1.2 or less. If the lab technician takes 16 measurements and the variance of the measurements in the sample is 2.2.
To find :
1) Does this provide enough evidence to reject the claim that the lab technician’s accuracy is within the target accuracy?
2)Compute the value of the appropriate test statistic ?
Solution :
1) n=16 number of sample
The target accuracy is a variance in measurements of 1.2 or less i.e.
The variance of the measurements in the sample is 2.2 i.e.
According to question,
We state the null and alternative hypotheses,
Null hypothesis
Alternative hypothesis
We claim the alternative hypothesis.
2) Compute the value of the appropriate test statistic.
Using Chi-square,
Therefore, The value of the appropriate test statistic is 27.5.
Answer:
It's 55
Step-by-step explanation:
5/8=0.625
0.625 times 88 = 55