A professor grades students on four tests, a term paper, and a final examination. Each test   counts as 15% of the course grade. The term paper counts as 20% of the course grade. The final examination counts as 20% of the course grade. Alan has test scores of

Q: Find the percentage of data points that lie between -2.31 and 1.85.

A: Assuming the data follows standard normal distribution with mean 0 and standard Deviation 1Finding…

Q: if a test is weighted at 25% and I make a 55 on the test with my current grade being a 82, would is…

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Q: What percentage of ACT composite scores are below 31? Recall the following: For the ACT, the mean…

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Q: Determine the two values of z such that the middle 58% of the data lie between the two z-values.

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Q: A statistics professor made the following histogram for the scores on her class’s first exam.   If…

A: From the Histogram, the scores and the corresponding frequencies are, Given that the passing score…

Q: Checkup One of the authors has an adopted grandson whose birth family members are very short. After…

A: A z-score, when expressed in standard deviation units, represents the location of a raw score in…

Q: In planing for his children to go back to school Susan buys several items at a discount. Five items…

A: Given information: Five items at $1.29 each, three at $1.49 each, six at $1.79 and nine at $0.99.…

Q: Sally just received her SAT results. Her SAT mathematics score was 600 and is in the 74th…

A: The score is 600 and it is the 74th percentile.

Q: Real Estate Appreciation. The average cost of a single family home in Seattle, WA in 2004 was…

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Q: The percentage of women who get MS is 0.59%. What percentage of men get MS? Round to the hundreth…

A: Relative risk is a measure of the risk of a certain event happening in one group compared to the…

Q: Michael gets test grades of 73, 76, 82, and 87. He gets a 80 on her final exam. Find the weighted…

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Q: you scored 88,92,and 87 on three tests.Write and solve an equation to find the score you need on the…

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Q: Twenty years ago, 57% of parents of children in high school felt it was a serious problem that high…

A: n = 900 x = 363 P0 = 0.57

Q: A poll showed that 56.1% of Americans say they believe that some psychics can help solve murder…

A: P(not A) = 1 - P(A)  When we are talking about % in probability  Than take 100% as total  So ,…

Q: -3.7; B+ = 3.4; B = 3.0; and B=2.7. Find e student's GPA for the semester. Math Comparitive Religion…

A: To calculate the student's GPA, we need to convert each letter grade to a numerical value based on…

Q: weight-loss program, and she had 15 individuals participating in the program. She weighed…

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Q: While at the local ice skating rink, Cora went around the rink 27 times total. She slipped and fell…

A: We can find the answer as below.

Q: Test whether patients getting Treatment 1 are more likely to survive, if 62 out of 82 getting…

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Q: Elaine gets quiz grades of 81, 85, and 82. She gets a 72 on her fınal exam. Find the weighted mean…

A: Weighted mean formula = w1x1 + w2x2 + .............+wnxn

Q: Find the percent of 16/20 and 4/20. What are the relationships between the answers?

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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: 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: Find the mean: 4,5,7,9

A: The data set is: 4,5,7,9

Q: Use the information provided here to answer the following questions. H0 : p 60, n 36, Xbar = 58.…

A: option (a) which is the information provided characterizes one smaple, one sided test is correct…

Q: Do Now: Find the mean of the following test scores: 100, 98, 86, 95, 81

A: Given ,score is 100,98,86,95,81sample size (n)=5

Q: Solve the problem. 5) Michael gets test grades of 73, 77, 82, and 86. He gets a 93 on her final…

A: The test grades are 73, 77, 82, and 86 and the final exam grade is 93.

Q: TALL, TALLER, TALLEST Below are the heights of the students in your classroom: 143.3, 150.1,…

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Q: P (more than 6 will fail) =

A: If an experiment has only two outcomes, they follow binomial distribution. It has two parameters,…

Q: lecture(12.3): A statistics class is made up 32% in person learners  and has 24 in person learners.…

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Q: In Music, Linda scored 70%, and her score was at the 85th percentile.  In Art, Linda scored 95%,…

A: It is given that the stated person's scores (in percentage) in Music and Art are 70% and 95%…

Q: An appliance store sells additional warranties on its refrigerators. twenty percent of the buyers…

A: We have given following information: of buyers buy the limited warranty for . of buyers buy the…

Q: Barney’s landlords are increasing his rent.  Last month he paid $545 for rent, but starting next…

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

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Q: author De Veaux Christensen Thomas Stewart Simmons Alexander Miller Cheeseman Berg Raymond Atkins…

A: Given: n = 14 Formula Used: Correlation coefficient r = n∑XY-∑X∑Yn∑X2-∑X2n∑Y2-∑Y2