Solved 5 Suppose That Act Scores Are Normally Distributed Chegg Question: assume that act scores are normally distributed. a sample of 25 male college freshmen and a sample of 16 female college freshmen are randomly selected. the sample mean (x) and the population standard deviation (o) of these male and female college freshmen are given below: n female freshmen male freshmen 16 25 х 23.5 22.8 0 5.1 3.1 by. Assume that act scores are normally distributed n(21,5). write an appropriate excel command to find:a. the probability that an individual scores over 25.b. the probability that the average score of 10 individuals is anywhere between 20 and 25.c. the act score such that the probability of having a score higher than that is 0.15 .d.
Solved Assume That Act Scores Are Normally Distributed A Chegg Assume that act scores are normally distributed with a mean of 21.1 and a standard deviation of 4.8. if 20 act scores are randomly selected, find the probability that they have a mean greater than 22.0. The normal distribution graph is also known as the bell curve. it is characterized by two parameters. the first one is the mean of a distribution; the graph is always symmetric about the mean, which means that half of the observations are greater than mean and half are lesser. Assume that a set of test scores is normally distributed with a mean of 120 and a standard deviation of 5. use the 68 95 99.7 rule to find the following quantities. 1. the percentage of scores less than 120 is . 2. the percentage of scores greater than 125 is . 3. the percentage of scores between 110 and 125 is . 3. Upper: x = 2.0538*2.3 63.6. the lengths of pregnancies are normally distributed with a mean of. 269 days and a standard deviation of 15 days. a. find the probability of a pregnancy lasting 309 days or longer. b. if the length of pregnancy is in the lowest 2%, then the baby is premature.
Solved Suppose Act Science Scores Are Normally Distributed Chegg Assume that a set of test scores is normally distributed with a mean of 120 and a standard deviation of 5. use the 68 95 99.7 rule to find the following quantities. 1. the percentage of scores less than 120 is . 2. the percentage of scores greater than 125 is . 3. the percentage of scores between 110 and 125 is . 3. Upper: x = 2.0538*2.3 63.6. the lengths of pregnancies are normally distributed with a mean of. 269 days and a standard deviation of 15 days. a. find the probability of a pregnancy lasting 309 days or longer. b. if the length of pregnancy is in the lowest 2%, then the baby is premature. Question: assume the act test scores are normally distributed with known mean 20.0 and standard deviation 5.5 in 2020. what is the cutoff for the lowest 27% of the test scores? assume the act test scores are normally distributed with known mean 2 0 . 0 and standard deviation 5 . 5. Suppose act reading scores are normally distributed with a mean of 21.3 and a standard deviation of 6. μ= 21.3 (mean) σ = 6 (standard deviation) formula for standardization of x ∼n (21.3,6) z =σx−μ . solution: a university plans to award scholarships to students whose scores are in the top 5%. what is the minimum score required for the.
Solved 6 The Act Scores Is Normally Distributed With Mean Chegg Question: assume the act test scores are normally distributed with known mean 20.0 and standard deviation 5.5 in 2020. what is the cutoff for the lowest 27% of the test scores? assume the act test scores are normally distributed with known mean 2 0 . 0 and standard deviation 5 . 5. Suppose act reading scores are normally distributed with a mean of 21.3 and a standard deviation of 6. μ= 21.3 (mean) σ = 6 (standard deviation) formula for standardization of x ∼n (21.3,6) z =σx−μ . solution: a university plans to award scholarships to students whose scores are in the top 5%. what is the minimum score required for the.
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