What proportion of scores falls below x = 35 in a normal distribution where H = 65 and o= 12? Round your answer to four decimal places.%3DType your response A new medication has been found to relieve pain symptoms in 80% of people who takeit. The medication is administered to 50 patients. What is the probability it is effective in40 or more of the patients? (Round to two decimal places.) Use an online calculator orExcel to do the calculations.Type your response

We have given that, X be the random variable from normal distribution with mean (μ) = 65 and…

Answered: What proportion of scores falls below x…

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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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.)
HI T F. %24 E Z. Find the margin of error for the given values of c, s, and n. c = 0.98, s= 2.9, n = 21 Click the icon to view the t-distribution table. The margin of error is (Round to one decimal place as needed.) Enter your answer in the answer box and then click Check Answer. All parts showing Clear All Check Answer e Type here to search 查。 F1 F2 F3 F4 F5 %23 & 3. 4. 9.
Please don't forget to round
Please fill in the blanks
Among freshmen at a certain university, scores on the Math SAT followed the normal curve, with an average of 550 and an SD of 100. The SAT score of a student whose score is at the 99th percentile is closest to what value? Group of answer choices 780 400 760 805
A teacher wants to assign an 'A' grade to everyone that scores in the 80th percentile. The grades are: 8 10 12 15 25 40 50 55 60 75 85 90 What is the 80th percentile value What is the meaning
Find the z-score that has 70.54% of the distribution's area to its right. Click to view page 1 of the table. Click to view page 2 of the table. O A. - 0.82 В. - 0.54 С. 0.82 D. 0.54
Claim: The proportion of children who play sports is less than 55%. Sample statistics include n = 1,320 subjects with 33% saying that they play a sport. Find the value of the test statistic. Round your answer to two decimal places, if needed.
If z=1.28 find the percentile (nearest whole number, for the z score.
Students in a class took a test whose results were normally distributed. The mean score was an 81 and the standard deviation was 4.5. What score is at the 83rd percentile (round to the nearest whole number.) a.84 b.83 c.85 d.86
You are a consumer psychologist interested in holiday spending. A national census reports that the American family spent an average of µ = $81 for Halloween candy and costumes last year. A sample of N = 16 families this year produced a mean of $85 with s = 20. t-value ? t-critical?

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What proportion of scores falls below x = 35 in a normal distribution where H= 65 and o = 12? Round your answer to four decimal places. %3D Type your response