How can a value for z be determined if it is not found in normal distribution table. For example, if I want to calculate phi of 3.33 what is it going to be?
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Q: (a) Find an 80% confidence interval for the average weights of Allen's hummingbirds in the study…
A: According to policy we supposed to answer three part kindly repost for remaining.
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A: We have given,
Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…
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Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…
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Q: Suppose the mean of a math exam score is 70 with a standard deviation of 12. If each score is…
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Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…
A: Given information: mean, μ=86 Standard deviation, σ=29. a) The probability that x is more than 60…
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Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…
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Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…
A: GivenMean(μ)=84standard deviation(σ)=21
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A: PX≥85.0=PX-μσ≥85.0-7210=PZ≥1.3=1-PZ<1.3=1-0.9032 Excel function=NORM.S.DIST1.3,TRUE=0.0968
Q: Suppose a population is known to be normally distributed with a mean, equal to 116 and a standard…
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Q: glucose per deciliter (1/10 of a liter) of blood. Suppose that after a 12-hour fast, the random…
A: We Have to find given probability..
Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…
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A: It is given that the population mean is 100, the population standard deviation is 20, and X = 95.
Q: person's blood glucose level and diabetes are closely related. Let x be a random variable measured…
A: Given that. X~N( μ , ?^2 ) μ=84 , ?=25 Z-score =( x - μ )/? NOTE:- According to bartleby…
Q: For data that is not normally distributed we can't use z-scores. However, there is an equation that…
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Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…
A: Solution
Q: (a) Compute a 95% CI for µ (b) Compute a 99% CI for µ. (c) Which of the two intervals has bigger…
A: Xbar=20.1, n=50, variance(sigma^2)=10
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- A population with u = 45 and o = 10 is standardized to create a new distribution withu= 100 and o = 20. In this transformation, a score of X = 15 from the original distribution will be transformed into a score of X =.A person's blood glucose level and diabetes are closely related. Let x be a random variable measured in milligrams of glucose per deciliter (1/10 of a liter) of blood. Suppose that after a 12-hour fast, the random variable x will have a distribution that is approximately normal with mean u = 86 and standard deviation o = 26. Note: After 50 years of age, both the mean and standard deviation tend to increase. For an adult (under 50) after a 12-hour fast, find the following probabilities. (Round your answers to four decimal places.) A USE SALT (a) x is more than 60 0.8315 (b) x is less than 110 (c) x is between 60 and 110 (d) x is greater than 125 (borderline diabetes starts at 125)Suppose the mean and standard deviation of the GPAs at Loyola are Xbar = 1.963; and s = 0.257Catherine's GPA has a z-score of 2.010. What is Catherine's GPA?
- Allen's hummingbird (Selasphorus sasin) has been studied by zoologist Bill Alther.† Suppose a small group of 19 Allen's hummingbirds has been under study in Arizona. The average weight for these birds is x = 3.15 grams. Based on previous studies, we can assume that the weights of Allen's hummingbirds have a normal distribution, with ? = 0.36 gram.Allen's hummingbird (Selasphorus sasin) has been studied by zoologist Bill Alther.† Suppose a small group of 11 Allen's hummingbirds has been under study in Arizona. The average weight for these birds is x = 3.15 grams. Based on previous studies, we can assume that the weights of Allen's hummingbirds have a normal distribution, with ? = 0.22 gram.A person's blood glucose level and diabetes are closely related. Let x be a random variable measured in milligrams of glucose per deciliter (1/10 of a liter) of blood. Suppose that after a 12-hour fast, the random variable x will have a distribution that is approximately normal with mean ? = 82 and standard deviation ? = 22. Note: After 50 years of age, both the mean and standard deviation tend to increase. For an adult (under 50) after a 12-hour fast, find the following probabilities. (Round your answers to four decimal places.) (a) x is more than 60(b) x is less than 110(c) x is between 60 and 110(d) x is greater than 125 (borderline diabetes starts at 125)
- The time to finish a race in minutes is lognormally distributed. The mean of the log (base 10) transformed time is 2.38 and the standard deviation is 0.4. a. What is the time by which 80% of the runners will finish the race? b. What percent of runners will finish the race between 60 and 100 minutes?For data that is not normally distributed we can't use z-scores. However, there is an equation that works on any distribution. It's called Chebyshev's formula. The formula is p = 1 - 7.2 where p is the minimum percentage of scores that fall within k standard deviations on both sides of the mean. Use this formula to answer the following questions. a) If you have scores and you don't know if they are normally distributed, find the minimum percentage of scores that fall within 2.1 standard deviations on both sides of the mean? b) If you have scores that are normally distributed, find the percentage of scores that fall within 2.1 standard deviations on both sides of the mean? c) If you have scores and you don't know if they are normally distributed, how many standard deviations on both sides of the mean do we need to go to have 96 percent of the scores? Note: To answer part c you will need to solve the equation for k.Suppose that Xhas a normal distribution, Find E[ex].
- A person's blood glucose level and diabetes are closely related. Let x be a random variable measured in milligrams of glucose per deciliter (1/10 of a liter) of blood. Suppose that after a 12-hour fast, the random variable x will have a distribution that is approximately normal with mean ? = 81 and standard deviation ? = 26. Note: After 50 years of age, both the mean and standard deviation tend to increase. For an adult (under 50) after a 12-hour fast, find the following probabilities. (Round your answers to four decimal places.) (a) x is more than 60(b) x is less than 110(c) x is between 60 and 110(d) x is greater than 125 (borderline diabetes starts at 125)For each substance, estimate the standard deviation o by assuming uniform distribution and normal distribution shown in Table 8.11 in Section 8.8. (Round your answers to 4 decimal places.) Uniform Distribution Normal Distribution Chromium Barium FluorideSuppose that the TSH (Thyroid Stimulating Hormone) levels among healthy individuals are normally distributed with a mean of 3.3 unitsmL. Suppose also that exactly 95% of healthy individuals have TSH levels below 6.2 unitsmL. Find the standard deviation of the distribution of TSH levels of healthy individuals. Carry your intermediate computations to at least four decimal places. Round your answer to at least two decimal places.
