5 C CO he Question 30 = A population of values has a normal distribution with μ = 10.4 and o random sample of size n = 2
Posted: Mon Jul 11, 2022 11:51 am
5 C CO he Question 30 = A population of values has a normal distribution with μ = 10.4 and o random sample of size n = 20. Find the probability that a single randomly selected value is greater than 28.1. P(X> 28.1) = 0/1 pt 398 Details Find the probability that a sample of size n = 20 is randomly selected with a mean greater than 28.1. P(M> 28.1) = Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted. Submit Question Jump to Answer Question 31 0/1 pt 398 Details A manufacturer knows that their items have a normally distributed length, with a mean of 13.5 inches, and standard deviation of 2.6 inches. 88.1. You intend to draw a Submit Question Jump to Answer If 10 items are chosen at random, what is the probability that their mean length is less than 11.2 inches? Question 32 0.25/1 p 398 Details The lengths of pregnancies in a small rural village are normally distributed with a mean of 268 days and a standard deviation of 16 days. In what range would you expect to find the middle 50% of most pregnancies? Between and Submit Question If you were to draw samples of size 32 from this population, in what range would you expect to find the middle 50% of most averages for the lengths of pregnancies in the sample? Between and Enter your answers as numbers. Your answers should be accurate to 1 decimal places.