The genetics & ivf institute conducted a clinical trial of the ysort method designed to increase the probability of conceiving a boy. as of this writing, 291 babies were born to parents using the ysort method, and 239 of them were boys. use a 0.01 significance level to test the claim that the ysort method is effective in increasing the likelihood that a baby will be a boy. what is the value of the test statistic needed to test this claim?

Beatrice decides she wants to babysit a few children at the same time to earn the money faster. she tells parents that if they allow her to babysit their children at her house, she will eliminate her automatic $5 tip and will give them an additional $5 discount. (a) write an equation showing the total cost for each client. identify all variables. (b) four parents bring their children to beatrice’s house at the same time for babysitting. beatrice wants to find out how many hours she must babysit the 4 children to earn exactly the $100 she needs in order to buy the present for her mother. write and solve an equation to find the number of hours. justify each step in the solution. (c) one parent decides not to drop off her child. the remaining 3 parents drop their children off at 9 a. m. two of the parents say they will be back at 1 p. m. the third parent says she will pick up her child at 2 p. m. at noon, beatrice realizes she needs feeding the 3 ch

Lorenzo ate 2/5 of his bag of almonds. his 4 friends ate equal shares of the remaining bag of almonds?

What is the average rate of change for this function for the interval from x=2 to x=4 ?