find out the probability for given z score  data area of the left of -2.5 area between -1.3698 and 1.3689

Q: nder th

A: Z is the standard score used to measure by what value the raw score is above or below the standard…

Q: find the z-score that has 30.5% of the distributions area to its left.

A: From the given information, PZ<z=30.5%⇒PZ<z=0.305

Q: What is the z-score that corresponds to the area of 0.0398?

A: Z-score tells the relationship between mean & values of a group.

Q: Find the area between.x = 18 and .x = 23 under a normal distribution curve with μ = 20 and o = 4.…

A: The mean and standard deviation are 20 and 4, respectively.

Q: Find the z score that has 66.3% of the distributions area to its right. (Round to 2 decimal places)

A: Answer:-  Given, Area to the right=66.3%=0.663 Here we need to determine the Z-score that has an…

Q: Find the​ z-scores for which 95​% of the​ distribution's area lies between -z and z.   The Z scores…

A: We need to find the z-score Finding the alpha

Q: Find the area on the normal curve between z = -.88 and z = 2.59.

A: Solution: It is required to find the area on the normal curve between z=-0.88 and z=2.59.…

Q: Find the z value to the left of the mean so that 76.52% of the area under the distribution curve…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: Use the standard normal table to find the z-score that corresponds to the cumulative area 0.0078. If…

A: We will use Standard Normal table to find the required z score.

Q: find the z scores probability  1- left area of z score 1.23  2- area between -2 and 2 3-  right…

A: We have to find given probability..

Q: In each part, find th area under the standard normal curve that lies between the specified z-score,…

A: Refer Standard normal table/Z-table OR use excel formula "=NORM.S.DIST(1, TRUE)" &…

Q: Find the area under the standard normal distribution curve to the left of =z−1.92. Use The Standard…

A: We have given the z-score- Z = -1.92 We have to find the standard normal distribution curve to the…

Q: Assume the sample is a random sample from a distribution that is reasonably normally distributed and…

A: Given that: t-Distribution with t= 1.5 and sample size= 8 Now will use standard t-distribution…

Q: The area under the normal curve is 10. Select the correct response: O True False

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: Find the probability that standard normal random variable takes on the given values. Show the…

A: (a). Find the value of P (z = 2.5): An important property of continuous distribution: The…

Q: Use the Cumulative Normal Distribution Table to find the :-score for which the area to its right is…

A: According to the given information, we have P-value = 0.85 (Right tailed)

Q: ppose 70% of the area under the standard normal curve lies to the left of z. Is z positive or…

A: 70% of the area under the standard normal curve lies to the left of z.

Q: Find the z value to the left of the mean so that 99.63 of the area under the distribution curves…

A: We have to find the z value to the left of the mean so that 99.63 of the area under the…

Q: Use the standard normal table to find the​ z-score that corresponds to the cumulative area 0.4681.…

A: It is required to find the value of z such that P(Z≤z) = 0.4681.

Q: find the indicated area under the normal curve and their probability to the left 0.65 to the right…

A: Z values state that the amount of standard deviation is above or below the mean value of what is…

Q: Suppose the service time, in minutes, at a bank has the Exponential distribution with 2 = 1/2.…

A:

Q: Find the z value to the left of the mean so that 99.09% of the area under the distribution curve…

A:

Q: Sketch the area under the normal distribution curve over the indicated intervals and find the…

A: (a) The probability between Z = - 2.33 and  Z = -1.44  is, Therefore, the required probability is,…

Q: Suppose the random variable Z follows the standard normal distribution. Find the area under the…

A: The area under the standard normal curve between z=0 and z=2.16=P(0≤Z≤2.16)=? Draw the normal curve…

Q: Find the area between 23 and 25 under the normal distribution curve with x-bar=20 and s=4? Show…

A: Given data x-bar=20 s=4 we have to find p(23<x<25)

Q: The area under the normal curve between z = 0 and z =- 1 is the area under the normal curve between…

A:

Q: Use the standard normal table to find the​ z-score that corresponds to the cumulative area 0.0877.…

A: The concept of standard normal distribution is used to calculate the probability of a normally…

Q: Find the area under the normal curve with z-scores greater than 2.47:

A: The z-score is 2.47.

Q: Use the standard normal table to find the​ z-score that corresponds to the cumulative area 0.8092.

A: The cumulative area is 0.8092.

Q: find the z scores probability  1- left area of z score 1.2345  2- area between -2 and 1.1925

A:

Q: Find the z value to the right of the mean so that 99.06% of the area under the distribution curve…

A: The required probability is P(Z<z0)=0.9906

Q: Use the standard normal table to find the z-score that corresponds to the cumulative area 0.1698. If…

A: The area under the curve Area = 0.1698

Q: Find the z-score for which 89% of the distribution's area lies between -z and z. -1.5982, 1.5982…

A:

Q: The experiment is to toss two balls into four boxes in such a way thát each ball is equally likely o…

A: It is given that the, There are 2 balls and 4 boxes. The experiment is to toss two balls into 4…

Q: Find the zz  value to the left of the mean so that 98.98% of the area under the distribution curve…

A: P (Z< z) = 0.9898 z (P = 0.9898) = 2.32(Using Excel = NORM.S.INV (0.9898))

Q: d. The probability of getting a random sample of 150 people with a mean blood sugar level less than…

A: The provided information is µ=4.7 mmol/L σ=1.4 1. The distribution is normal. 2. Yes. a.…

Q: Find the z value to the right of the mean so that 62.93% of the area under the distribution curve…

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

Q: A z-score less than O represent an element above than the mean. * true O False

A: Since, you have asked multiple question, we will solve the first question for you. If you want any…

Q: Assume the random variable X is normally distributed with mean u = 50 and standard deviation o = 7.…

A:

Q: What is the total area between the z-distribution and z-axis.

A: We know that the  Normal distribution or Z-distribution is defined over all the real line i.e.…

Q: Assume the readings on thermometers are normally distributed with a mean of0degreesC and a standard…

A:

Q: Find the area under the standard normal distribution curve between z = –2.05 and z = 2.05.

A: The area under a standard normal curve is 1. Given

Q: Find the  value to the left of the mean so that 99.13% of the area under the distribution curve lies…

A:

Q: Find the area under the standard normal distribution curve to the left ofz=-0,59. Use OThe Standard…

A: We have given that,  X is a random variable from the standard normal distribution with mean (mu) = 0…

Q: Use the Cumulative Normal Distribution Table to find the --score for which the area to its right is…

A:

Q: Fact: The region under the standard normal curve that lies to the left of −1.46 has an area of…

A: a) P(Z >-1.46) = 1 - P(Z <-1.46) P(Z >-1.46) = 0.9279   b)P(Z >1.46) = P(Z<-1.46) =…

Q: Find a z- value to the left of the mean so that 92.79% of the area under the distribution curve lies…

A: We need to find the Z score that has 0.9279 area to its right and (1-0.9279) area to its left

Q: A z-score less than O represent an element above than the mean.

A: We know that Z or standard normal distribution has a mean 0 and it is symmetric about 0 and we also…

Q: When using the cumulative normal distribution table, the area under the curve given is the area to…

A: The mean and standard deviation of standard normal distribution are 0 and 1.

Q: the area in the right tail more extreme than z = .943 in

A: From provided information, z=0.943 and it is to the right tail. It is expected to calculate…

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.