Q1) e- The subjects' score of a student at the final exams were as in the following table. Therefore, the grade of the student :is B C D E F G H Subjects A Score Unit 57 76 78 84 53 72 65 91 5 5 5 4 4 3 3 2 accept (50-59) O good (70-79) very good (80-89) O excellent (90-100) O none of all above O

Q: Q1) b- for the following data, (19, 32, 26, 71, 88, 45, 59), the Harmonic Mean (H) is 37.4406…

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Q: There are a collection of pens in a bucket: 7 red, 7 black, 1 blue, and 7 purple. If one pen is…

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Q: Q4) Data of 100 student scores was recorded in a statstistics exam. The arithmetic mean and standard…

A: Given n=100, sample mean x̄=60, standard deviations σ=15, incorrect score: 27,40  Correct score:…

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Q: Q1) d- for the following equation, the value :of n is

A: here use formula of permutation  n Pr = n!(n-r)!

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Q: No 72

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Q: 145 people To test the hypothesis, a simple random sample of 41 Veterans Day celebrations was…

A: The population mean is μ=145. The sample size is n=41. The sample mean is x¯=157. The sample…

Q: Q4) Data of 100 student scores was recorded in a statstistics exam. The arithmetic mean and standard…

A: Given n=1000, sample mean x̄=60, standard deviations=15

Q: The table below gives the amount of time students in a class studied for a test and their test…

A: Use EXCEL to obtain the value correlation coefficient r:   EXCEL procedure:   Go to EXCEL Go to…

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Q: 3. Suppose the Road Transport and Safety Agency wants to examine the safety of compact cars, midsize…

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Q: Given the following Linear regression model: Profit ($) = -20 + 0.13 *counter Sales ($) + 0.04 *…

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Q: When the outliers are removed, how does the mean change? : 16 18 20 22 24 26 28 30 32 34 36 38 40 42…

A: From the dot-plot The observation is  18,38,38,40,44,44,44,46,48 The mean is…

Q: 5 6 7 ans in Repayment 515 550 570 500 605 635 665 Find a linear model for these data Assuming the…

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Q: A distribution of values is normal with a mean of 116.2 and a standard deviation of 60.1. Find P43,…

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Q: The average age of dogs owned by residents in a small retirement community is 7.6 years with a…

A: The mean is 7.6 and the standard deviation is 0.9.

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Q: 4- If two variables move in decreasing direction, then the correlation is A) Positive B) Negative C)…

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Q: CMNO4 1.00 ppm 2.50 ppm 5.00 ppm 7.50 ppm 10.00 ppm 15.00 ppm 20.00 ppm 25.00 ppm unknown Absorbance…

A: Solution: Let X be the CMnO4- and Y be the absorbance at 580 nm. From the given information,

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A: Given n=329 X=39

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Q: * :The correct arithmetic mean is (1

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Q: In a regression analysis involving 30 observations, the following estimated regression equation was…

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Q: b- for the following data, (19, 32, 26, 71, 88, 45, 59), the Harmonic Mean (H) is 37.4406 O 37.6044…

A: To find: The harmonic mean

Q: What is the mean of the distribution table below: Place of Residence Frequency Cavite 8 25 Batangas…

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Q: if the probability of a machine producing a defective part is 0.05, what is the probability of…

A: Given Sample size=100 Exactly five defective X=5 P=0.05

Q: k Q1) c- The probability of twice withdraw the same ball from a box contains 25 balls, 5 balls are…

A: Total no: of balls=25   White balls=5 blue balls=7 black balls=9 no: of ways =

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A: Given problem is :

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A: Given Information: Oxygen treatment group: Sample size n1=151 Successes x1=110 Placebo: Sample size…

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Q: b. The null and alternative hypotheses would be: Ho: μî Select an answer H₁: με Select an answer c.…

A: The following information has been given: X 60 56 63 60 72 63 64 59 59 64…

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Q: Use the sample data and confidence level given below to complete parts (a) through (d). In a study…

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Q: Now suppose of interest is to estimate the mean number of children attending all 2017 Veterans Day…

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Q: If a regression equation is used, when are predictions not meaningful?

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A: Given Mean=155 Standard deviations=30 X=194

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Q: Suppose the mean number of people attending all 2017 Veterans Day celebrations held in Virginia is…

A: Given that: Mean number of people attending all 2017 veterans day celebrations held in Virginia,…