The graph to the right depicts IQ scores of​ adults, which are normally distributed with a mean of 100 and a standard deviation of 15.   Find the indicated IQ​ score, labeled X on the​ graph, such that the area to the right of X is 0.55.

Q: The absolute viscosity for sunflower oil is supposed to average 0.0311 Pa⋅s at 38 ∘C. Suppose a food…

A: Given information Sample mean x̅ = 0.0318 Population mean µ = 0.0311 Sample size = 4 Standard…

Q: A normal distribution has a mean of µ = 40 with σ = 10. If a vertical line is drawn through the…

A:

Q: A normal distribution has a mean of 60 and a standard deviation of 16. Indicate whether the body is…

A: Using z-score table to calculating above. Z-score=(X-mean)/standard deviation

Q: The mean score on a driving exam for a group of​ driver's education students is 60 ​points, with a…

A: According to the given information in this question Mean is 60 Standard deviation is 4 K is 2

Q: A sample of university students has an average GPA of 2.78 with a standard deviation of 0.45.  If…

A: Given, A sample of university students has an average GPA of 2.78 with a standard deviation of 0.45.…

Q: a store have a normal distribution with a mean of $33000 and a standard deviation of $3500.

A: Given: Mean, μ=33000Standard deviation,σ=3500

Q: An extensive study conducted in 1980 concluded that the mean mercury level in oysters from the White…

A: The null hypothesis is a simple statement about the value of the population parameter which is…

Q: Suppose a variable X is normally distributed with a standard deviation of 10. Given that .0985 of…

A:

Q: Find the​ z-score that has 93.82​% of the​ distribution's area to its left.

A: given probability is P(Z<z0)=0.9382

Q: Assume that z scores are normally distributed with a mean 0 and a standard deviation of 1. If Pl - b…

A: # z be the standard normal variates with mean 0 and standard deviations 1  To find value of b such…

Q: Suppose the scores of students on an exam are normally distributed with a mean of 264 and a standard…

A:

Q: Use the z table to find the value k so that 40% of the scores are greater than k.

A: Normal distribution is widely used in statistics . It is very useful in modern times .

Q: The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of…

A: Obtain the range that would be expected to be in the middle 95% of the amounts of nicotine in these…

Q: Since the area under the normal curve within two standard deviations of the mean is 0.95, the area…

A: We have given that,  P(-2<Z<2) = 0.95 Then,  P(Z>2) = ?

Q: Suppose that the hemoglobin levels among healthy females are normally distributed with a mean of…

A: Given information- Mean level of hemoglobin, μ = 14.2 g/dL We have given that exactly 95% of healthy…

Q: A normal distribution has a mean of 0.40 and standard deviation of 0.028. According to the Empirical…

A: We have given that,  X is random variable are normally distributed with mean (mu) = 0.40 and…

Q: If the area to the left of x in a normal distribution is 0.102, what is the area to the right of x?…

A:

Q: Suppose that the hemoglobin levels among healthy females are normally distributed with a mean of…

A: From the provided information, Mean (µ) = 14.2 Let X be a random variable which represents the…

Q: Find the required areas under the normal curve if the scores are assumed to be normal distributed…

A: The use of standard normal probability distribution table helps us in ascertaining the percentage of…

Q: find the x value, so that 30.72% of the area under the normal distribution curve (with the mean 53…

A: Given Data Population Mean,μ = 53.0 Population Standard Deviation,σ = 4.0

Q: If the mean score on the final exam is 70 with a standard deviation of 10 then the test score of a…

A: Given Mean =70 Standard deviations=10 Z=-1.5

Q: In a population of 500 adult Swedish males,medical researchers find their brain weights to be…

A: The density function for normal distribution of a random variable X with mean μ and standard…

Q: For bone density scores that are normally distributed with a mean of 0 and a standard deviation of…

A: The mean is 0 and the standard deviation is 1.

Q: Based on the records of the Admissions Office of University X, the mean score of all Grade 11…

A: Given that  Mean score=120 Standard deviation =20 Z score=-0.25 We have to find the raw score..

Q: The average score on your Math Exams was 75 with a standard deviation of 20. Assuming the scores are…

A: Average score, μ=75. Standard deviation of scores, σ=20.   Let X be the random variable that records…

Q: for population with mean of 80 and standard deviation of 9, what is the z-score for X = 84

A: Here mean, mu= 80 Standard deviation, Sigma=9 Z Score= (X-mu)/sigma

Q: At one college GPAs are normally distributed with a mean of 2.55 and a standard deviation of 0.49.…

A: Empirical rule says that in a normal data set, virtually every piece of data will fall within three…

Q: Suppose body temperature is normally distributed with mean of 98.30°F and a standard deviation of…

A:

Q: Suppose that the hemoglobin levels among healthy females are normally distributed with a mean of 14…

A:

Q: In the same class, Idris scored 82% on a test with a z-score of 1.5 while Malik got 54% with a…

A: From the provided information, Idris scored 82% on a test with z score of 1.5 and Malik got 54% with…

Q: In a factory producing parts for an electronic appliance, the length of a large  number of parts…

A: From the provided information, Mean (µ) = 3 Standard deviation (σ) = 0.05 X~N (3, 0.05) Here X be a…

Q: For a population with  = 15, a raw score of X = 82 corresponds to z = -0.60.  What is the mean for…

A: Consider that the mean and standard deviation of a random variable x are µ and σ, respectively.…

Q: The average score on one of your MMW exams was 70 with a standard deviation of 15. Assuming the…

A: Given: μ = 70 σ = 15 Explanation: Z-Scores:   Z-Score is the measure of the data point is how many…

Q: The scores on a college entrance test have an approximately normal distribution with mean, µ = 84…

A: The z score is also known as standard normal variate. If the population mean and population variance…

Q: For bone density scores that are normally distributed with a mean of 0 and a standard deviation of​…

A:

Q: The precision scientific instrument company manufactures thermometers that are supposed to give…

A: Standard Normal Distribution: A random variable z is said to be a standard normal variable if z…

Q: A test involving 320 male ages 20 to 24 is found in the blood cholesterol levels had a mean of 181…

A: Given: Mean of 181 MG/DL Standard deviation of 44.6 MG/DL . To determine z for one of the man who…

Q: A random sample of 1000 oranges showed that the mean amount of juice per orange was 8.2 fluid…

A: The mean is 8.2 and the standard deviation is 1.5.

Q: On a recent calculus exam, a class mean was 69 with a standard deviation of 2.4. Calculate the…

A:

Q: A score of X=75 is measured in a population with a mean of μμ=100. A z-score of z=+1.50 is…

A:

Q: The graph to the right depicts IQ scores of​ adults, which are normally distributed with a mean of…

A: Given data,μ=100σ=15P(X>x)=0.65x=?

Q: The scores in the final test in Filipino of all grade 8 students in a certain school are normally…

A: Given : Population mean (μ)=50Standard deviation (σ) =8Right side area =0.209

Q: The body temperatures of a group of healthy adults have a​bell-shaped distribution with a mean of…

A: Given data,μ= 98.36 °Fσ = 0.58 °FAccording to emperical rule ,68% of Area is within 1 S.D about…

Q: The body temperatures of a group of healthy adults have a​ bell-shaped distribution with a mean of…

A: Let X denote the  body temperatures of a group of healthy adults have a​ bell-shaped distribution…

Q: Suppose the mean value for Rh is 1,106, the mean value for X,R, is 2,200, the standard deviation for…

A: Given, Rh ~ Normal(μ = 1106, σ2 = 427.12) When Rh ~ Normal(μ, σ2), then log Rh ~ Normal(log(μ),…

Q: In a class with 50 students, a 60-item test is conducted. After the test, it is found that the mean…

A: Given: In a class with 50 students, a 60-item test is conducted. After the test, it is found that…

Q: imagine the average score on an exam is 71 with a standard deviation of 10. If scores are normally…

A: If a random variable x has a distribution with mean µ and standard deviation σ, then the z-score is…

Q: The average monthly income of the employees of Fashion Head Incorporated was computed to be equal to…

A: Given,sample size(n)=900mean(μ)=5500standard deviation(σ)=550

Q: The national scores on an exam were normal distributed with a mean of 428 and a standard deviation…

A: Let X denote the national scores on an exam and it follows normal distribution with mean and a…

Q: Suppose that, for a certain exam, a teacher grades on a curve. It is known that the mean is 70 and…

A: Solve

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.