What is D4 ?   What is the P68 ?   What is Q1 ?   What is P55 ?

Q: Determine the percent of data greater than z=−1.40.

A: Know that  X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)    Z-score =( x - μ )/?

Q: COURSE: HUMAN FACTOR ENGINEERING Eye height is 1630mm and SD is 69 z= 1.64. Calculate the 95 th…

A: The 95th percentile is, z=x-μσ1.64=x-163069113.16=x-1630x=1630+113.16=1743.16

Q: While estimating from a sample, you should always try to get a biased B,. Is this correct? O Yes O…

A:

Q: Solve for the following. Show your complete solution and emphasize your final answers. For…

A: Quartile  Qi class=i(n+1)4th value of observation Percentile Pi class=i(n+1)100th value of…

Q: 6. Assume that there are only three possible levels of education: "low", "middle" and "high". Among…

A: Note: Hey, since there are multiple questions posted, as per guidelines we will answer first…

Q: so is 80% z-score 1.

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

Q: 4. Upper 38% 5. Lower 55%

A:

Q: Suppose r is .84, compute proportion of variation is explained?

A: From the given information, it is observed that r=0.84.

Q: Find the z-score that separates the largest 5% of scores from the rest.  Round your result to 3…

A: Obtain the z-score that separates the largest 5% of scores from the rest. The z-score that separates…

Q: What percent of scores are below a T score of 56?

A: Given, T score is 56. Now,

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: he percentage of bags weighing between 8.9 and 9.46 ounces is The percentage of bags weighing…

A: According to our guidelines we will solve only first three sub-parts of a question and rest will be…

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: Calculate the student's weighted grade point average if they received the following grades in their…

A: Given that,No. of different courses = 5To find the weighted grade point average of the…

Q: M= 90 SD= 7.8 What raw score is needed to be in the top 8%?

A: *Mean μ=90SD σ=7.8Top 8%⇒P(X>x)=0.08⇒P(X≤x)=092Corresponding  z-score is obtained as

Q: Consider the Mark's grade below. Using the concept of weighted mean, solve his Grade Point Average…

A: Formula for GPA =∑ Gradex credit∑ credit  Sum of all the credit=4+3+3+4

Q: competed in an ironman race, J

A: Here it is given that - 3500 people competed in an ironman race, John finished 805th,

Q: What is p value ?

A: The​ P-value is the probability of observing difference in the sample statistic this high or higher…

Q: Calculate the Percentile Rank for a student who becomes fourth (4th) in terms of the GPA categorized…

A: The formula for percentile rank of score is, Percentile rank of score=Number of values below…

Q: (d) Find the 10th percentiles. (Round your answer to two decimal places.) X = X-bar = 66.67

A:

Q: The 20th percentile is how many inches?

A: The mean is 64 inches and the standard deviation is 2.5 inches.

Q: SOLVE FOR THE FOLLOWING with complete solution:  1, 2, 2,  3, 4, 4, 5, 6, 7, 8, 8, 9, 11, 13, 15,…

A:

Q: (b) Find the 55th percentile of the number of calories. Round the answer to two decimal places. The…

A:

Q: Can you help figure out what percentile 78/345 is please? I need to know if it is above 80% .

A: Percentile: The value below which a percentage of data falls is known as the percentile. The formula…

Q: What is the percentile rank x=15 and what is the score for 75th percentile?

A: If the we have no of scores is 15 then we have formula for percentile rank as:…

Q: Identify the test statistic. x² = 116.97 (Round to two decimal places as needed.)

A: Provide data,   25-34 35-44 45-54 55-64 Not HS grand 28 46 49 70 HS 85 18 88 83 1-3 years…

Q: Find the 90th percentile. So 10% of the T

A: Let X be the lifetime of LCD TV sets follows an exponential distribution with a mean of 100,000…

Q: A histological test for cancer has sensitivity, specificity, positive predictivity, and negative…

A: To find, Which of the four indicators would you use to reassure a patient that the positive result…

Q: In clinical Stude, the event A represent a of Symptoms, and Ei's mutually Specific Symptom or a set…

A: Introduction: Suppose X and Y are two events defined on the same sample space. Then, the conditional…

Q: 10

A:

Q: You want to estimate the percentage of statistics students who get grades of C or better. How many…

A: Obtain the sample size. The formula of sample size is, Obtain the area of probability in the right…

Q: What percent of scores are below a z-score of z=−1.19? (You can use the z-table)

A: Given: z-score = z=−1.19 We want to find the percent of scores that are below a z-score.

Q: z = -3 is what percentile? percentile

A: Given z=-3. The percentile is P(z<-3)

Q: how did you find the Z score?

A: The critical value  of z for 97% confidence  interval  is 2.17.

Q: A publisher reports that 52 % of their readers own a laptop. A marketing executive wants to test the…

A: We have to find the test statistics.