THE FF. WERE THE RESULTS OF THE EXAMINATION CONDUCTED FOR GRADUATING STUDENTS. FIND THE STANDARD DEVIATION (USE 4 DECIMAL PLACES) SCORE INTERVAL 81-90 91-100 5 95.5 65 f X

Q: Smith works as a welder inspector in a shipyard. He knows from keeping track of good and poor welds…

A: Givenp^=0.05sample size(n)=300

Q: Find the standard deviation of the data: 22, 29, 21, 24, 27, 28, 25, 36 O a. 4.8 O b. 2.8 O C. 4.2 O…

A:

Q: Find the standard deviation of this number set: {2, 4, 9} showing all of the steps involved as shown…

A:

Q: Find the standard deviation of the lengths of the wolves in the entire animal preserve.

A: The mean of the lengths of the wolves in the entire animal preserve is,…

Q: The weights in ounces of newborn infants were recorded by a hospital. The weights were 88, 99, 82,…

A: Given data,   88, 99, 82, 81, 84 and 100   First find the sample mean. Mean:

Q: Find the mean, 80th percentile and standard deviation: 2,-3,7,5,-2,3

A: Solution-: Given data: 2,-3,7,5,-2,3 We want to find, (a) The mean=? (b) The 80th percentile=? (c)…

Q: Find the sample standard deviation.

A: Given that:n= 12  Sample size

Q: Find Mean Deviation : (i) about Mean (ii) about Median, in the following data: 2, 7, 9

A: Given data is2, 7, 9

Q: A researcher measures the amount of food consumed by each dog in her lab. She finds that the mean…

A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

Q: Many athletes (and their parents) worry about the risk of concussions when playing sports. A…

A: First let us sort the head circumferences (in inches) for the players on the team; No. Head…

Q: A sample of the number of sick days used by employees at a clinic is as indicated: 0,    0,    1,…

A: Given data 0,0,1,1,2,4

Q: Find the sample standard deviation. The top five scores on last semesters midterms were 90 97 100 90…

A: The question is about measures Given : Data - 90, 97, 100, 90, 93   To find : Sample std. deviation

Q: ather drops his three children off at the movie theater and give nd on a movie and concession…

A: let X1,x2,x3 be the three children. A father drops his three children off at the movie theater and…

Q: he frequency distribution in the table represents the square footage of a random sample of 510…

A: square footage frequency(f) midpoint(x) 0-499 8 249.5 500-999 16 749.5 1000-1499 38 1249.5…

Q: The actual scores that were measured originally and have not been transformed are called:​ Select…

A: we have to identify correct term used for the actual scores that were measured originally and have…

Q: Below represents the amounts that a random sample of employees reported that they spent on dinner…

A:

Q: In the equation for computing the standard deviation, n represents what? a. the average b. the mean…

A: Given that Formula for standard deviations Sd=√{∑(x- x̄)/n}

Q: Laura learned that the average GPA in her school is 3.6 with a standard deviation of 0.3. If her GPA…

A: From the given information,   Mean = 3.6 Standard deviation = 0.3   The objective is to find the…

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: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

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Q: A medical lab tested a sample of 8 vials of blood for acidity on the pH scale.  Use this data to…

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Q: The manager of a department store wants to estimate the average amount of money a customer will…

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Q: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…

A: Given that, Mean = 72 Standard deviation = 7

Q: The 20th percentile is how many inches?

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

Q: EN ENGINEERING STUDENTS HAVE THE FF. HEIGHTS (IN FT): 5.8 4.8 4.9 5.9 DETERMINE THEIR STANDARD…

A: Given that data. 5.2 5.8 5.9 6.2 4.8 4.9 5.11 5.9 4.11 5.6

Q: d. The degrees of freedom = e. The test-statistic for this data (Please show your answer to three…

A: d. Degrees of freedom: df=number of categories-1   =4-1   =3

Q: Given the spot speed of 20 vehicles on a certain traffic section. Use 8 classes. Determine: a. The…

A: Please find the explanation below. As asked by you, I have answered the questions (a) and (b).

Q: is a measure of difference between the observed value of a variable and some other value. Select…

A: Remark Dispersion is a statistical term that describes the size of the distribution of values…

Q: Consider the data:  10, 7, 9, 13, 11, 13, 14.  (Show your work.) a)Determine the mean.…

A:

Q: The mean and standard deviation for the final exam in Dr. Fudd's class were as follows: mean = 86…

A: Given that  Mean = 86  ,  Standard deviation = 3  Bugs scored = 88

Q: Find Mean Deviation: (i) about Mean (ii) about Median, in the following data: 2, 7, 9

A:

Q: An upscale women's clothing boutique in Laguna Beach, on average, has daily sales of $28,176.44. The…

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Q: Find the standard deviation for the following data. Round your answer to 2 decimal places as needed…

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Q: Colin checked the hit counters of 5 websites to track how many people visited them yesterday. He…

A: Measure of central tendency measures the central or average value of a dataset. Measures of…

Q: Find the mean and standard deviation of the filling numbers:  30,25,10,30,45,60,30,25,20

A: Mean of the filling numbers is Mean=sum of the all numbers /no  of  given observation Mean…

Q: d. Determine the sample standard deviation. Round your answer to 2 decimal places. e. Determine the…

A: The data set are :- X :- 29.6 32.4 38.7 42.4 44.5 46.4 49.0 60.8 70.2 Then,  We will find sample…

Q: Sofia wants to determine the average household expenditure on lawn care products per year. She…

A: Population standard deviation σ = 19.2The confidence interval = 0.95Significance level (α) = 1-…

Q: - Calculate the Quartile Deviation (Q.D) and coefficient of Q.D. for the data below: ( 230 , 620 ,…

A:

Q: Smith works as a welder inspector in a shipyard. He knows from keeping track of good and poor welds…

A: Let p denote the propprtion of poor welds. Given that p = 5% = 0.05 Sample size n = 300