Exercises 3–5: statistically significant diff values
in the context of a randomization distribution that is based upon the assumption that there is no real difference between the groups, consider a diff value of to be statistically
significant if there is a low probability of obtaining a result that is as extreme as or more extreme than
3. using that definition and your work above, would you consider any of the diff values below to be statistically significant? explain.
a. 1.64 ounces
b. −0.80 ounces
c. values within 0.80 ounces of 0 ounces

Agrain trader buys the following amounts from three suppliers: 3,200 pounds, 5,100 pounds and 700 pounds. what is the total weight of his purchase?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?