Can you statistically put that something is within the 100th percentile? For examlpe a z-score of 4.00. Or would you say that the percentile is in the 99th percentile? Give the the body is .99997

Q: After 8 points are added to each score in a sample, the mean is found to be M = 40. What was the…

A: Let us have n number of scores in a sample. After adding 8 to each score sample mean will be M = 40…

Q: Calculate the 57th percentile of the data shown x 13.4 18.8 19.2 23.2 24.1 35.8 47.9 49 49.6 66.5

A: Given: Number of observation (n) =10 57th percentile (P57) = Pk

Q: The Inter Quartile Range is the difference between the third and first quartiles. It describes the…

A: WE have to find given probability.

Q: G iven:  mean =85    s=12     n =3500 What % of scores are between 97 to 109 ?

A:

Q: Complete the following statement. If you are asked to find the 85th percentile, you are being asked…

A: If you are asked to find the 85th percentile, you are being asked to find

Q: Current Attempt in Progress X Incorrect. The following data give the speeds of 13 cars (in mph)…

A: Solution

Q: You take a medical test and the doctor tells you that your wellness z-score is 1.86. What percent of…

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

Q: What score corresponds to the 10th ​percentile?

A: Here Given Graph of percentile(Y axis)  and Test scores( X axis)

Q: you want to do a survey to help you estimate the true porportion of current students who have…

A:

Q: What proportion of z scores lie between -3 and +3 in the height in inches data set

A: We have to calculate P(-3 < Z < 3)

Q: Use the expression in the accompanying discussion of sample size to find the size of each sample if…

A: Obtain the sample size for each of the sample. The formula of sample size is,   Use EXCEL Procedure…

Q: what percent of the total population is found between the mean and the z-score given? z=3.58

A: We have given that. Standard normal.  X~N( 0 , 1 )   μ =0  , ? =1   Z-score =( x - μ )/?   z= 3.58

Q: Use last digit of your student ID(I called it b) to do the following problem. Charges for…

A:

Q: A student's score on an actuarial exam is in the 78th percentile. What can you conclude about the…

A: From the provided information, A student’s score on an actuarial exam is in the 78th percentile.

Q: 1.128 Find an SAT percentile. Reports on a student's ACT or SAT results usually give the percentile…

A: Suppose a random variable X, defines the SAT scores of a student.

Q: what range of raw scores makes up the middle 40%

A: The middle 40% means, the scores lie between 30th and 70th percentile. From stand normal, z-score…

Q: If someone has a diastolic blood pressure of 105, what percentile does this represent? The mean is…

A: Given:  Mean(μ)  = 85 Standard deviation (σ) =12

Q: x 1.8 2.3 6.7 11.3 16.7 25.2 26.9 27.9

A: Percentile is the value in the data set below which certain percentage of the data lie.   The…

Q: find the mean if Z-score =14, st.Dev.=2.5, for a score of 8.5

A: Standard normal distribution:The standard normal distribution is a special case of normal…

Q: Calculate the 25th percentile of the data shown x 1.8 2.3 6.7 11.3 16.7 25.2 26.9 27.9 Can you…

A: The given data set: x 1.8 2.3 6.7 11.3 16.7 25.2 26.9 27.9   Thus, the given…

Q: An ectopic pregnancy is twice as likely to develop when the pregnant woman is smoker compared to…

A: Consider EP represents the event that the women have an ectopic pregnancy.Consider S represents the…

Q: Hurricane Damage Find the percentile rank for each value in the data set. The data represent the…

A: Given data  2.3,3.3,6.2,7.9,9.6,11.3 N =6

Q: Eric scored 107 on the IQ test. What is his exact percentile rank? M=100    s=15

A: Given, Mean, M=100 Standard deviation, S =15

Q: Calculate the 60th percentile of the data shown x 9.4 9.8 15.3 19.2 20.5

A: Answer - Calculate the 60th percentile of the data shown x 9.4 9.8 15.3 19.2 20.5

Q: A class of students took a test. The instructor said that the 75th percentile score was 90 out of…

A: The solution is as follows,

Q: . How high are the levels for the highest (top) 4.8% of all children? Z- score = Answer =

A:

Q: Suppose you are told your BMI is 32, the  70th percentile for your age and sex. Please interpret…

A: Introduction: The pth percentile of a set of observations is the value below which, p% of the…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.