According to her doctor, Mrs. Baker's cholesterol level is higher than only 15% of the females aged 50 and over. The cholesterollevels among females aged 50 and over are approximately normally distributed with a mean of 235mgand a standard deviation ofdLmg25. What is Mrs. Baker's cholesterol level? Carry your intermediate computations to at least four decimal places. Round yourdLanswer to one decimal place.mgdL

Answered: Image /qna-images/answer/3693ff41-1e87-412b-bbad-4c13db83314b.jpg

Answered: According to her doctor, Mrs. Baker's…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The weights for new born babies is approximately normally distributed with the mean of 5.4 pounds and a standard deviation of 1.1 pounds. Use the cumulative Z-Score table to answer the questions below. Write your answers rounded to the nearest whole number. Consider a group of 2,000 new born babies 3. How many would you expect to weigh more than 4.41 pounds? 4. How many would you expect to weigh between 5.4 and 5.95 pounds?
In this exercise, you will compare Chebyshev’s rule and the empirical rule. a. Compare the estimates given by the two rules for the percentage of observations that lie within two standard deviations to either side of the mean. Comment on the differences.b. Compare the estimates given by the two rules for the percentage of observations that lie within three standard deviations to either side of the mean. Comment on the differences.
Based upon past flight data, the average weight of checked baggage was 44.5 pounds with a standard deviation of 3.6 pounds. Weight of checked baggage was normally distributed. Any checked bag weighing more than 50 pounds requires an additional charge of $95. For a flight with 400 checked bags, approximately how many bags will require an additional charge? 25 98 O 2 6. O 63
Need help with #11 that refers to #10
You recently took a statistics exam in a large class. The instructor tells the class that the scores were Normally distributed, with a mean of 72 (out of 100) and a standard deviation of 12 . Your score was 96 . You would like to know what proportion of students did better than you did. Unfortunately, your calculator batteries are dead and you must now rely on Normal tables. You need to find which of the following? the area to the left of 2 the area to the right of 2 the area to the right of 96 the area to the left of 96
Psychology students at a university completed the Dental Anxiety Scale questionnaire. Scores on the scale range from 0 (no anxiety) to 20 (extreme anxiety). The mean score was 11 and the standard deviation was 3.5. Assume that the distribution of all scores on the Dental Anxiety Scale is normal with u = 11 and o = 3.5. Complete parts a through c. Click here to view a table of areas under the standardized normal curve. a. Suppose you score a 18 on the Dental Anxiety Scale. Find the z-value for this score. z= 2 (Round to the nearest hundredth as needed.) b. Find the probability that someone scores between 10 and 15 on the Dental Anxiety Scale. P(10sxs 15) = (Round to four decimal places as needed.) c. Find the probability that someone scores above 17 on the Dental Anxiety Scale. P(x> 17) =| (Round to four decimal places as needed.)
Answer number 3
The scores of students on a standardized test are normally distributed with a mean of 300 and a standard deviation of 40. What percentage of the scores are above 260? A. 40% B. 84% C. 68% D. 32% Can I please have a step by step explanation. Thank you
The blood pressure in millimeters was measured for a large sample of people. The average pressure is 140 mm, and the SD of the measurements is 20 mm. The histogram looks reasonably like a normal curv Use the normal curve to estimate the following percentages. Choose the answer that is closest to being correct. A 19.1% B 30.9% C 38.2% D 69.1% E 68.27% A The percentage of people with blood pressure between 130 and 150 mm. B The percentage of people with blood pressure between 140 and 150 mm. D The percentage of people with blood pressure over 150 mm.
Gestation Periods of Humans. Gestation periods of humans have a mean of 266 days and a standard deviation of 16 days. Let y denote the variable "gestation period" for humans.a. Find the standardized variable corresponding to y.b. What are the mean and standard deviation of the standardized variable?c. Obtain the z-scores for gestation periods of 227 days and 315 days. Round your answers to two decimal places.d. Interpret your answers in part (c).
Answer 1 and 2
Answer the question in the second photo with the data provided in the first photo

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