Answer:
c) t-test of population mean
Explanation:
The t-test statistic is used in hypothesis testing. Here we would use a one sample t test to test our hypothesis. The one sample t test measures the statistical difference between the hypothesized mean and the sample mean. In a one sample t test or single sample t test, a test variable is measured against a test value.
Example we compare our test variable to the hypothesized mean value $75 above.
The t test is used instead of z score when standard deviation is unknown.
Using the t test, we either accept or reject the null hypothesis given alternative hypothesis.
Answer:
-2x-8
Step-by-step explanation:
1) Distribute:
-6/3x+-15/3-3
2) Simplify:
-2x-5-3
3) combine like terms:
-2x-8
hope this helps
It’s really hard to see the picture
X/w=y/5
wy=5x
wy/5=x
w/5=x/y
it should be a
