answer the following questions please
1. A set of 50 data values has a mean of 18 and a variance of 4. I. Find the standard score (z) for a data value = 20. II. Find the probability of a data value < 20. (Points : 4) 2. Find the area under the standard normal curve: I. to the right of z = -0.43 II. to the left of z = -0.43 (Points : 4) 3. Assume that the population of heights of female college students is approximately normally distributed with mean m of 65 inches and standard deviation s of 2.75 inches. Show all work. (A) Find the proportion of female college students whose height is greater than 67 inches. (B) Find the proportion of female college students whose height is no more than 67 inches. (Points : 6) 4. The diameters of grapefruits in a certain orchard are normally distributed with a mean of 6.85 inches and a standard deviation of 0.80 inches. Show all work. (A) What percentage of the grapefruits in this orchard have diameters less than 6.3 inches? (B) What percentage of the grapefruits in this orchard are larger than 6.75 inches? (Points : 6) 5. Find the normal approximation for the binomial probability that x = 6, where n = 15 and p = 0.5. Compare this probability to the value of P(x=6) found in Table 2 of Appendix B in your textbook. (Points : 6) 6. A set of data is normally distributed with a mean of 500 and standard deviation of 100. Â· What would be the standard score for a score of 433? Â· What percentage of scores is between 500 and 433? Â· What would be the percentile rank for a score of 433? (Points : 6) Time Remaining:
Study Acers provides students with tutoring and help them save time, and excel in their courses. Students LOVE us!No matter what kind of essay paper you need, it is simple and secure to hire an essay writer for a price you can afford at StudyAcers. Save more time for yourself. Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Our Homework Writing Disciplines
With a highly diverse team in almost all academic fields including:
Warning: Invalid argument supplied for foreach() in /home/acemfljg/public_html/wp-content/themes/essay-writing/footer.php on line 12