Discuss the below:
Q: Your car gets 29 miles per gallon, one day you see your mileage average is 28 miles per gallon. Is this change statistically significantly and would you look for a reason or is it more of a variation attributed to chance?
Another day you see your mileage is 22 miles per gallon - Is this change statistically significantly and would you look for a reason or is it more of a variation attributed to chance?
How much of a decrease would you need to see before you thought it statistically significant?
State the Null & Alternative Hypothesis for a test of significance:
A consumer group claims the amount of Iron in a health supplement capsule is less than the posted amount of 500 milligrams.
P-Value & Dice: Use the table to test for bias against 6's, below shows probabliity of 6's in 100 tosses.
Number of 6's Probability
8 or fewer .006
10 or fewer .020
12 or fewer .052
In 100 tosses, 10 rolls are 6's. Is this result significant at the 0.05 level? What is the P-Value for this result?