A voluntary response sample is always valid.
Answer ; k=2h−2x+y
Step-by-step explanation:
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:
Answer:
multiplies by 4 then divides by 2
Step-by-step explanation:
