Answer:
7A - 42
Step-by-step explanation:

Answer:
35.991
Step-by-step explanation:
X=3.1:
Step-by-step explanation:
Answer: 8
Step-by-step explanation:
2 - 8 = -6
Answer:
Now that his car is 5 years old, he would like to know whether the variability of gas mileage has changed. He recorded the gas mileage from his last eight fill-ups; these are listed here. Conduct a test at a 10% significance level to infer whether the variability has changed.
Step-by-step explanation: