Save Question 13 5 points The heights of boys at a particular school follow a normal...
The heights for 5-year-old boys follow the normal distribution with a mean height of 43 inches and a standard deviation of 5.3 inches. A sample of 60 boys is randomly selected.If possible, find the probability that the mean height of boys in the sample is higher than 42 inches. If not, explain.
2. The table at right shows the heights of all fourth-grade students in a particular school, and the frequency of each height. Height (cm) Frequency 130 2 131 7 132 9 133 20 134 38 135 18 136 12 137 10 138 5 What percentage of the students is shorter than 135 cm? What is the probability that the height of a randomly selected student would be greater than 132 cm but less than 138 cm? How many fourth-grade students...
Jack is a collegiate high jumper. The heights of his jumps follow a normal distribution with an average of 6 feet 3 inches with a standard deviation of 8 inches. Let Y be the height of one of Jack's jump. (Note: high jumpers try to jump over a bar that is set at a particular height for an attempt. Clearing the bar means that the high jumper went over the bar without knocking it down.) a) The bar is currently...
First, read the article on "The Delphi Method for Graduate Research." ------ Article is posted below Include each of the following in your answer (if applicable – explain in a paragraph) Research problem: what do you want to solve using Delphi? Sample: who will participate and why? (answer in 5 -10 sentences) Round one questionnaire: include 5 hypothetical questions you would like to ask Discuss: what are possible outcomes of the findings from your study? Hint: this is the conclusion....