The weight (in pounds) for a population of school-aged children is normally distributed with a mean equal to 135 ± 20 pounds (m ± s). Suppose we select a sample of 100 children (n = 100) to test whether children in this population are gaining weight at a .05 level of significance. What are the null and alternative hypothesis?

Find the solutions for a triangle with a =16, c =12, and b = 63º

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.