You have just conducted an analysis of variance on three groups, which has led you to reject the null hypothesis. now you want to know which of the groups are different from each other, so you decide to conduct three t tests, each at the .05 level of significance. what are the approximate chances that at least one of those t tests will produce a significant result, even if the groups being compared really do come from populations with the same mean?

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.

what shape is

45.36 feet per second

step-by-step explanation:

tyrone travels 30 miles in 58.2 minutes.  

1 mile = 5280 feet; this means he travels

30(5280) = 158400 feet in 58.2 minutes.

1 minute = 60 seconds; this means he travels 158400 feet in

58.2(60) = 3492 seconds.

this gives us the unit rate of

158400/3492 = 45.36 feet per second.

sorry not knowing about that