Solve the problems and show your complete solution. If the answer contains decimal, write up to 3 decimals. 1. The standard deviation on a final examination was 9, while the mean grade was 72. The best 14% of students are expected to achieve 1.5 or higher. What is the minimal grade required for a student to obtain 1.5 or higher?

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

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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: The level of calcium in the blood of healthy, young adults varies with a mean of 11.3 mg per…

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Q: 3. Identifying Extreme Values: Using the Normal Table in Reverse Steps: 1) Sketch the normal curve…

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Q: After 5 points are added to each score in a sample, the mean is found to be M=45 . What was the…

A: Given data: c = 5 points are added to each score in a sample. New mean, M = 45 Let the original mean…

Q: P8. In the USA, the mean yearly individual consumption of apples is n(9.5. 2.8) lbs. a. Jody's apple…

A: (P8) (a) Obtain the percentage of the US population that has more extreme consumption, if Jody’s…

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: Ted is not particularly creative. He uses the pickup line "If I could rearrange the alphabet, I'd…

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Q: Steven ran the 100 meter dash in 13 seconds.  What is his T-score if the class mean was 14 seconds…

A: t statistic

Q: On a nationwide math test, the mean was 52 and the standard deviation was 4. If Roberto scored 85,…

A: The z score formula is,

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: Score 30-under 40, frequency 1. Approximately what percent of students got more than 70?

A: Please submit entire data, comprising of values above 70, for the second subpart  to get it…

Q: Respond to parts B and C below. Part B: Calculate the mean (average) of the given list. Show your…

A: Part A.To find the quartiles, median, and mean of the given data set, we first need to arrange the…

Q: What is the p value if the mean is 98.6, n=7, t= -2.114?

A: The P-value is the probability that provides strong evidence in favor of the alternative hypothesis.…

Q: For standard deviation, the x-x or the y-y, which numbers do you use?

A: Please find the explanation below.

Q: Allie has 5 exam scores 98, 94, 84, 95 and 95 in math class. What score does she need on the final…

A: According to questionAllie has 5 exam scores 98, 94,84,95 and 95 in math classWe have to calculate…

Q: Place the following in order to show how you find the standard deviation. Take the square root of…

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Q: ) Let X₁, X₂,..., X and Y₁, Y₂, ..., Ym be random samples from populations with moment generating 25…

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Q: Please calculate the SD of a sample of 8 data points using the formula taught in class. The…

A: We hava given that, ΣX2 = 5012.2,   n = 8, x̄ = 24.0 Then,  We will find the standard deviation (SD)…

Q: A sample consists of n = 16 scores. How many of the scores are used to calculate the range?

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Q: Mark went around the neighborhood collecting spare change for charity. The 7 families gave: $5.00 ,…

A: The spare change amount given by families for charity is:- $ 5.00 $ 4.00 $ 4.00 $ 6.00 $…

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

A: Given information- We have given the problem of standard normal distribution. We have given that a…

Q: Scores on a test have a mean of 66 and a standard diviation of 9. Michelle has a score of 57.…

A: Given,          Mean μ=66          Standard deviationσ=9          Michelle has a score X=57

Q: 5. IQ's are normally distributed with mean and standard deviation 15. Find the probability that a…

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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: A student receives test scores of 62, 83, and 91. The student's final exam score is 88 and homework…

A: The student’s mean score will be obtained as given below: Here, the total score is 125%.

Q: swer the questions that follows. 1. Illustrate the following measures of position

A: Quartiles are those values that divide the frequency into four parts when the values are arranged in…

Q: Your cat weighs 13 lbs. If the mean for weight of cats is 10 pounds and the standard deviation is…

A: Given that: Population mean, μ=10 Population standard deviation, σ=2

Q: A high school senior uses the Internet to get information on February temperatures in the town…

A: Given The data is as follows: The conversion formula is as follows: °F=95°C+32 Max…

Q: Identify a problem that you would like to research. For example, how hot is it in New York in…

A: New York city in August is hot compared to all the months in the year Step 1: Considering three…

Q: The mean grade of  Adrian in the final examination in mathematics was 85 and the standard deviation…

A: Mean for mathematics = 85 Standard Deviation for mathematics = 7 Mean for science = 89 Standard…