A random sample of 80 jars of grape jelly has
a mean weight of 568 g, with a standard
deviation of 48.28 g. Construct a 99%
confidence interval for , the true weight of a
jar of jelly.

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan for ?

What describes horizontal cross section of the right rectangle 6m 8m 5m

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?