Answer:
DF = 458
Step-by-step explanation:
In statistics, T-test have an extensive application. T-tests are used in hypothesis testing or inference about the population mean when the population standard deviation is not known. Nevertheless, they are used in making inference in paired samples or dependent samples t-test as well as independent samples.
The degrees of freedom, DF, is a characteristic of the student's t distribution which is used in T-tests. In a simple T-test;
DF = n - 1
where n is the sample size
Given n is 459, DF = 459 - 1 = 458
Therefore, DF = 458
Answer:
x=75
Step-by-step explanation:
The answer is 0 because when you plug in the 3 and the 8 into the equation and do order of operations you will get 0.
Shirley/Tracey has to stay at least 10 days for the M and N to cost less
Answer:
9/10
Step-by-step explanation:
