19. If the mean is 19 and a standard deviation is 3.7 for a normally distributed variable, what is the z-score to represent the x value of 14.9?

Q: From sample sizes of 36 adults find the proportion of sample means having values of at least 170.

A: Here Given  Sample size=n=36  Population mean=μ=162 Population SD=σ= 58

Q: What is the mean of a distribution that has a standard deviation of 16.5 if a PERFORMANCE value of…

A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: From the provided information, Mean (µ) = 144 Standard deviation (σ) = 27 X~N (144, 27)

Q: 4. Suppose a variable X is normally distributed with a standard deviation of 10. Given that 0.0985…

A:

Q: Suppose that X is normally distributed with mean 110 and standard deviation 18.  What proportion of…

A: Given that, Mean = 110 Standard deviation = 18

Q: 3. Suppose the mean blood glucose of a population of adults is 162 with a standard deviation σ=58.…

A: Given that, n=36,μ=162σ=58 The mean and standard deviation of sample mean is,

Q: 2. The mean afternoon temperature in Quezon City for the month of April is 37°C and the standard…

A: The normal distribution related problems can be solved by using the standard normal z score method…

Q: 2. If the mean of a standardized test with a normal distribution is 54.3 and the standard deviation…

A: Mean, μ = 54.3 Standard deviation, σ = 4.6

Q: Suppose that the heights of adult men in the United States are normally distributed with mean of 70…

A: We have to find z score for given data..

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

A: Given information Mean = 116 Standard deviation = 14  between 88 and 116

Q: Suppose a population is known to be normally distributed with a mean, equal to 116 and a standard…

A: Given dataMean = 116Standard deviation = 14Probability that population would be between 88 and 102…

Q: Suppose a population is known to be normally distributed with a mean, µ, equal to 116 and a standard…

A: We have, Mean μ=116 Standard deviation σ=14 X~N116,14 Now,…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A:

Q: Suppose the distribution of maximum monthly January temperatures in Sydney is normal with mean, μ =…

A:

Q: If 40 is added to cach of a set ofr 25 values, the Coefficient of Variation changes to 40 % and if…

A:

Q: What value lies under a standard score of 1.5 in a distribution having a mean of 55 and standard…

A:

Q: 2. The blood cholesterol levels of men age 55 to 64 are approximately Normal, with mean 222…

A:

Q: Suppose IQ scores of students at Bradley follow a normal distribution with a mean of 103 and a…

A: Calculate the IQ score for the top 2.5% of all IQ's at this college.

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: Given information Mean = 144 Standard deviation = 27  between 90 and 171

Q: 13. Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A:

Q: Suppose a population is known to be normally distributed with a mean, µ, equal to 116 and a standard…

A: Let X denote the distribution of population. Given that X ~ N(mean = 116, SD = 14) Then Z = (X -…

Q: In a population, the variable Rain is normally distributed with a mean of 10 and a standard…

A:

Q: 16. In a standardized test with a normal distribution of scores, the mean is 63 and the standard…

A: here use normal curve property and value near to center in curve have more chance to occur

Q: If a z-score is equal to −2.05, it is 2.05 standard deviations below the mean. True or False

A: The standardized difference, which measures the difference between a random score (i.e., a value…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: The provided information are:

Q: Suppose that the heights of adult men in the United States are normally distributed with a mean of…

A: According to the given information, we have Mean = 70.5 inches and Standard deviation = 3 inches

Q: If the coefficient of variation is 1% and the mean is 3.2, determine standard deviation (to four…

A: We have given that Mean(x̅) = 3.2 CV = 0.01

Q: Suppose the scores of students on a Statistics course are Normally distributed with a mean of 440…

A:

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: Mean = 144 Standard deviation = 27

Q: 1. Assume that the IQ scores of SHS students in The College of Maasin follow a normal distribution…

A:

Q: Suppose that X is normally distributed with mean 110 and standard deviation 18.  What proportion of…

A: Given: Formula: Find: Required shaded area under the normal curve. Refer Standard normal…

Q: Assume that the test scores for a large class are normally distributed with a mean of 64 and a…

A: Solution-: Given: We find P(the class received a higher score than 78)=?

Q: If the true mean is 9090 with a standard deviation of 0.0030 within what interval will 95% of the…

A: For standard normal random variable, Mean (µ) =9090 Standard deviation (σ) = 0.0030

Q: Suppose that the score on a reading test are normally distributed within a mean of 70 and a standard…

A:

Q: If the true mean is 9590 with the standard deviation of 0.0080 within what interval will 98% of…

A: Given that , True mean = 9590 Standard Deviation = 0.0080

Q: 4. On a standardized test, scores are normally distributed with a mean of 400 and a standard…

A: GivenMean(μ)=400standard deviation(σ)=80

Q: Suppose that the heights of adult men in the United States are normally distributed with a mean of…

A: given data,normal distribution μ=69.5σ=3.5proportion of the adults men in united states are at most…

Q: If the mean of p hat equals 0.28 and the standard deviation of p hat is 0.07, what is the percent of…

A:

Q: 2. If the heights of a male youngsters are normally distributed with a mean of 60 inches and a…

A:

Q: Suppose that X is normally distributed with mean 110 and standard deviation 18.  What proportion of…

A: Solution-: Let, X- be the normally distributed random variable Given: We find,

Q: If a student scored 77 points on a test where the mean score was 84.5 and the standard deviation was…

A: Given: Score of student(x)=77Population meanμ=84.5Population standard deviationσ=5.1

Q: It is known that the mean is 65 and the standard deviation is 10. There are 30 students in the…

A:

Q: Suppose a population is known to be normally distributed with a mean, µ, equal to 116 and a standard…

A: Answer - A Normal distribution with a mean μ = 116  and a standard deviation σ = 14…

Q: 7. A set of data is normally distributed with a mean of 74. If the z-score corresponding to a value…

A:

Q: A distribution with u = 55 and o= 6 is being standardized so that the new mean and standard…

A: Introduction: For a random variable, X with mean μ, and standard deviation σ, the z-score is given…

Q: 1. The scores of individual students on a nationaltest have a normal distribution with mean 18.6 and…

A: (As per bartleby guidelines, for multiple questions asked, only the first question will be solved.…

Q: Suppose that the heights of adult men in the United States are normally distributed with a mean of…

A:

Q: 2) The time it take Claudia to drive to work is normally distributed with a mean of 46 minutes and a…

A: The time it take Claudia to drive to work is normally distributed with a mean 46 and standard…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: Given data A population is normally distributed with mean equal to 144 and standard deviation equal…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

A: Consider that X is a random variable defined as the population, which is normally distributed.The…

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.