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In the general population, IQ is normally distributed with a mean 100 and standard deviation 15.....
In the population, IQ scores are normally distributed with a mean of 100 and standard deviation of 15 a) in a random sample of 21 people, what is the probability of them having a mean IQ between 102 and 1057 Show.all work for full creditt b) Write a full sentence explaining the meaning of the probability you found in part (a)-include the context of the problem!
IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Let X = IQ of an individual Find the probability that the person has an IQ greater than 115. Write the probability statement P(___) What is the probability? (Round your answer to four decimal places.)
iq scores are normally distributed with a mean of 100 and a standard deviation of 15. a person who's score is higher than 84% has iq of?
iq scores are normally distributed with a mean of 100 and a standard deviation of 15. what percentage of people have between 60 and 85 or above 100. show work
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Mensa is an international society that has one - and only one - qualification for membership: a score in the top 2% of the population on an IQ test. (a) What IQ score should one have in order to be eligible for Mensa? (b) In a typical region of 145,000 people, how many are eligible for Mensa?
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. A sample of 10 children in a gifted learner program are found to have a mean IQ of 106. Use a z-test to determine if this is significantly different from the normal population mean. What are your specific null and alternative hypothesis? Z=+ - 1.96 standard deviation m= 4.743 Z= 1.26 Will you reject or retain the null hypothesis? We will retain the null...
all questions. Do not round answers 1. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. a. What percentage of scores is between 55 and i 15? b. In a group of 20,000 randomly selected individuals, how many have an IQ score of 130 or more? 2. A Honda Civic has its gas mileage (in miles per gallon, or mpg) normally distributed, with a mean of 33 mpg and a standard deviation of...
The IQ scores of adults are normally distributed with a mean 100 and a standard deviation of 15. If a group of 64 adults is randomly selected, what is the probability that their mean IQ will be at least 95? A. 0.6293 B. 0.3707 C. 0.9962 D. 0.0038
assume that IQ scores are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test). If a gifted program only accepts students with IQ scores in the top 14% what is the minimum IQ score to get to be considered for the program
Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not? Provide an example. There are many examples currently on the Chegg database, PLEASE use a DIFFERENT example. Thank you!