Scores on an endurance test for cardiac patients are normally distributed with µ= 254 and σ =18. A) What is the probability a patient will score above 272? B) What percentage of patients score below 218? C) What score does a patient at the 78th percentile receive?
Scores on an endurance test for cardiac patients are normally distributed with µ= 254 and σ...
QUESTION 16 Scores on an endurance test for cardiac patients are normally distributed with a mean of 182 and a standard deviation of 24. What is the probability that a patient has a score above 1707 0.1915 0.3085 0.4505 0.6915
Assume that all SAT scores are normally distributed with a mean µ = 1518 and a standard deviation σ = 325. If 100 SAT scores (n = 100) are randomly selected, find the probability that the scores will have an average less than 1500. TIP: Make the appropriate z-score conversion 1st, and then use Table A-2 (Table V) to find the answer. Assume that all SAT scores are normally distributed with a mean µ = 1518 and a standard deviation...
3. The scores in a standardized test are normally distributed with μ 100 and σ 15. (a) Find the percentage of scores that will fall below 112. (b) A random sample of 10 tests is taken. What is the probability that their mean scoretis below 1122
Most IQ scores are normally distributed with μ=105 and σ= 12. 1.What is the score needed to place a randomly selected participant in the 40th percentile? 2. what proportion of participants score: a. between 85 and 115 b. 102 and above c. below 70 d. below 72 or above 130 3.What is the probability that a random sample of 20 individuals has an IQ score: a) less than 98? b) between 100 and 105? c) above 103?
For a normal distribution of raw scores with µ= 75, σ = 8, answer the following. What is the probability of p(71 < X < 83) ? __________ Find the percentile ranking for the raw score X = 65th ______ percentile
Suppose scores for a test are distributed normally (300,30). a) What percent of test takers can expect to score 250 or above? b) What score is necessary to reach the 60th percentile?
The scores on a lab test are normally distributed with mean of 200. If the standard deviation is 20, find: a) The score that is 2 standard deviations below the mean b) The percentage of scores that fall between 180 and 240 c) The percentage of scores above 240 d) The percentage of scores between 200 and 260 e) The percentage of scores below 140
2.) High school seniors' SAT scores are normally distributed with μ = 1050 and σ = 100. If a student is selected at random, find the probability that her SAT score is: a.) above 1200 b.) below 890 c.) between 1000 and 1100 d.) What SAT score separates the smartest 4% of students? e). If 18 seniors are selected, find the probability that their mean SAT score is above 1150 3.) A survey of 200 college students revealed that 160 of them eat dessert...
The population of scores on the SAT is normally distributed with a µ = 500 and σ = 100. If you were to take a random sample of 48 students who had taken the SAT, what are the chances that their mean would be less than 520?
Assume that adults have IQ scores that are normally distributed with a mean of µ =105 and a standard deviation σ = 20. Find the probability that a randomly selected adult has an IQ between 95 and 115. The probability that a randomly selected adult has an IQ between 95 and 115 is _____.