A vertical line is drawn through a normal distribution at z = 1.20. What proportion of the distribution is on the left-hand side of the line?​   a. ​0.3849   b. ​0.1151   c. ​0.8849   d. ​0.7698

Q: A normal distribution has a mean of µ = 100 with σ = 20. If one score is randomly selected from this…

A: Mean = 100 Standard deviation = 20

Q: Use the table below to find the percentage of data items in a normal distribution that lie a. below…

A: Solution:Percentile reports the percentage of data items in a normal distribution that lies below…

Q: Given a normal distribution with u = 50 and o = 10, find a. the value of x that has 70% of the…

A: as per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…

Q: a. What is the distribution of X? X ~ N( b. Find the probability that a randomly hit fly ball…

A:

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

A:

Q: X follows a normal distribution with mean 45 and standard deviation 6. The z-variate corresponding…

A: Answer : The value of the X-variate is : (c) 54.

Q: What is the mean of the standard normal distribution? What is the standard deviation of the standard…

A: We know that if X follows Normal distribution with mean=μ and standard deviation=σ then X can be…

Q: Using the unit normal table, find the proportion under the standard normal curve that lies to the…

A: Givena)The standard normal curve that lies to the right of z=1.00

Q: For a normal distribution with a mean of m=60 and standard deviation of s=10, find the proportion of…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: QUESTION 10 Given a normal distribution with mean 40 and standard deviation 5, the value of x that…

A: Given data,μ=40σ=5P(X<x)=0.33P(Z<-0.44)=0.33z=-0.44

Q: Find the indicated score. The graph depicts the standard normal distribution with mean 0 and…

A: Let Z be the random variable from standard normal distribution with mean = 0 and standard deviation…

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

A: From the provided information, Mean (µ) = 40 Standard deviation (σ) = 10 X = 55

Q: For a normal distribution with a mean of μ = 100 and a standard deviation of σ = 15, what is…

A:

Q: Find the margin of error for the given values of c, s, and n. c = 0.95, s = 4, n = 11 Click the icon…

A: Given, c=0.95, S=4 and n=11

Q: In a normal distribution, the range of values of x is from... A.minus infinity to infinity  B.-1…

A: It is needed to define the range of values of x for normal distribution.

Q: Find P-values. Assume normal distribution applies. a. ?1: ? > 0.3; test statistic Z = 2.87 b. ?1: ?…

A: Given that  a H1: μ> 0.3; test statistic Z = 2.87b. H1: μ< 0.55; test statistic: Z = -3.07c.…

Q: A vertical line drawn through a normal distribution at z = -0.60 separates the distribution into two…

A: A standard normal variable z follows normal distribution with mean 0 and standard deviation 1.

Q: X has a normal distribution with a mean of 95 and a standard deviation of 12. The z-value soccer for…

A: X has a normal distribution with a mean of 95 and a standard deviation of 12.

Q: Suppose X = exam score and X has a normal distribution with mean 80 and standard deviation 5. Bob…

A: Given that, Mean = 80Standard deviation = 5

Q: Solve and sketch the problem. Given a normal distribution with population mean is 21 and population…

A: Let X be the random variable from normal distribution with mean (μ) = 21, variance (σ2) = 64 then…

Q: Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0…

A:

Q: In a normal distribution, x = 5, z = -1.25. This tells you (right or left) of the mean. a. b. O A.…

A: Normal distributionx = 5z = -1.25 this tells that x = 55 is how  many standard on which side of…

Q: The variable Z has a standard Normal distribution. Find the value z such that the event Z > z has…

A: Given, The variable Z has a standard Normal distribution. Find the value z such that the eventZ >…

Q: A vertical line drawn through a normal distribution at z = -0.72 separates the distribution into two…

A: Given :  A vertical line drawn through a normal distribution at z = -0.72 separates the distribution…

Q: A normal distribution has a mean of µ = 100 with σ = 20. If one score is randomly selected from this…

A:

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A:

Q: A vertical line is drawn through a normal distribution at z = 0.80. What proportion of the…

A:

Q: For a normal distribution with a mean of μ = 90 and a standard deviation of σ = 5, what is p(X>87)?…

A: We have given the following information about the normal distribution Mean = 90 Standard deviation…

Q: 2. 4. 4. 3. 6.

A: x Frequency (f) f⋅x f⋅x2=(f⋅x)×(x) 2 2 4 8 3 4 12 36 4 3 12 48 5 1 5 25 6 0 0 0 Total…

Q: What proportion of observations have values less than 7? Round to fourth decimal

A: From the provided information,    Mean of normal distribution µ=11.9 And standard deviation is σ=2.9…

Q: For a normal distribution with µ = 64 and σ = 9,

A:

Q: (1) What is the probability that exactly 6 of the characters are digits? (2) What is the expected…

A: Given,the exam will consist of a sequence which students will have to write in stats class. They…

Q: 1. For a chi-squared distribution, find (a) X .005 when v = 5; (b) x .05 when v = 19%; (c) X.01 when…

A: (a) To find Χ20.005​ for a chi-squared distribution with v = 5 degrees of freedom, we can use…

Q: For a normal distribution a mean of 60 and a standard deviation of 10, find the proportion of the…

A: It is given that the mean is 60 and the standard deviation is 10.

Q: The graph of a normal curve is given on the right. Use the graph to identify the values of μ and o.…

A: According to the given information, we have The normal curve is given. Distribution is normal.

Q: 13. 0.8907

A: Given information- We have given the graph that depicts the standard normal distribution of bone…

Q: Let x have a normal distribution with a mean of 30 and a standard deviation of 7. The z value for x…

A: The formula of the Z-score is,Where, X denotes the raw data point,µ denotes the population mean,σ…

Q: What is the mean of the standard normal distribution? What is the standard deviation of the standard…

A: In this case, we need to identify the correct option for the given statement i.e. the requirements…

Q: In a certain normal distribution, find the standard deviation e when p 50 and 10.56 % of the area…

A:

Q: ind the indicated z score. The graph dipicts the standard normal distribution of bone density scores…

A: The objective is to find the z score using the given graph.

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.