Arecent national survey found that parents read an average (mean) of 10 books per month to their children under five years old. the population standard deviation is 5. the distribution of books read per month follows the normal distribution. a random sample of 25 households revealed that the mean number of books read last month was 12. at the .01 significance level, can we conclude that parents read more than the average number of books to their children? what is the probability of a type ii error?

Allie answered 72% of the questions on her math test correctly. if she answered 18 questions correctly, how many questions were on the test?

Which of the following is correct interpretation of the expression -4+13

10 points? ? +++ me asap gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a) gabriella averages 7.5 u.s. dollars for every 100 euros. b) gabriella averages 100 u.s. dollars for every 25 euros. c) gabriella can exchange 75 u.s. dollars for 100 euros. d) gabriella can exchange 100 u.s. dollars for 75 euros.