The chart below provides the results of a 4th grade class on this years standardized test. Class Average National Average Standard Deviation Math 79.2 77.1 9.4 Reading 83.5 $4.7 10.1 a. Determine the z-score for both math and reading:

Q: n a final examination in mathematics, the mean was 72 and the standard deviation was 15. Determine…

A: Given : On the final examination in Mathematics ; Mean (μ) = 72 Standard deviation (σ) = 15 Let X be…

Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…

A: Given that ; X represents the number of adults in groups of five who reported sleepwalking P(x) is…

Q: . The following readings were taken with a meter stick for the length of a cylinder: 5.5 cm, 5.3 cm,…

A: Given, the readings of the length of a cylinder, taken with the help of a meter stick as follows:…

Q: Using your calculator, find the range and standard deviation, round to two decimals places: The…

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Q: Yearling Angus steers had a mean weight of 1152 pounds with a standard deviation of 84 pounds.…

A:

Q: Using your calculator, find the range and standard deviation, round to two decimals places: The…

A: Given data: Sample of 24 children

Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…

A: The value of sample mean is,

Q: Find the following z-scores when the mean is 25 and the standard deviation is 4: a) 20 b) 32 c) 28…

A: It is given that Mean = 25, SD = 4 The z score is is defined as Z = (X - mean)/SD

Q: Scores turned in by an amateur golfer at the Bonita Fairways Golf Course in Bonita Springs, Florida,…

A: a) Mean of the 2005 and 2006 season: x¯2005=74+78+...+75+778=76x¯2006=74+70+...+71+798=76 Variance…

Q: Use z-scores to make the following comparison. A high school student took two college entrance…

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Q: In a dependent sample t-test, you calculate the standard deviation for the  a) difference scores b)…

A: In this we have to tell that, for what values we calculate the standard deviation while using the…

Q: The following data shows how many employees showed up to work every day for two weeks 12 18 09 16 11…

A: We have given that data  I want to find interquartile mean and standard deviation.  Interquartile…

Q: For the sample below, 84 45 73 58 54 73 52 60 51 80 Determine the Standard Deviation. Round off your…

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Q: Hour Frequencies 10-14 8 15-19 28 20-24 27 25-29 12 30-34 4 35-39 1

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Q: Given the data below, find the standard deviation 2,4,4,5,6,9

A: We need to compute the standard deviation of the data given below: 2,4,4,5,6,9

Q: The following data values represent the daily amount spent by your family during a seven day summer…

A: Standard deviation= √E(X2)-((E(X))2 E(X)= (summation Xi)/n E(X2)= (summation Xi2)/n Sample size is…

Q: Which of the following is the best estimate of the standard deviation of the distribution in the…

A: The tip of the normal curve represents the mean So, Mean = 97 Now, Given values, μ-σ=88μ+σ=106

Q: consider the data given and find standard deviation below Scores Comulative frequency o- 4 5-9 4 10…

A: Given data is scores cumulative frequency 0-4 1 5-9 4 10-14 12 15-19 21 20-24 30…

Q: A sample was done, collecting the data below. Calculate the standard deviation, to one decimal…

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Q: I have a statistics the question which on the attached image.

A: A) The mean of the data can be obtained as:

Q: A sample of weights (in pounds) for six 12-year-olds is given below:   100 76 92 79 84 90    Find…

A:

Q: below

A: Baseball Player Batting Average Team Batting Average Team Standard Deviation Fredo 0.158 0.186…

Q: Amount of deposit, $ (x,) 1000 3000 3500 7000 15000 Number of depositors (n,) 96 107 130 89 78

A: xi 1000 3000 3500 7000 15000 ni 96 107 130 89 78

Q: The following frequency distribution analyzes the scores on a test. Find the mean, standard…

A: Given data and calculation is shown Scores(x) Number of students(f) fx fx2 10 2 20 200 15 8…

Q: The following data list ages of cars (in years) and monthly repair cost. What is the standard…

A: The regression analysis is conducted using EXCEL. The software procedure is given below: Enter the…

Q: figure the standard deviation of the distribution of means for a population with a standard…

A: Population standard deviation is given and sample standard deviations have to be calculated for…

Q: In a particular examination, the mean score is 82 and the standard deviation is 3.7. What is the Z-…

A:

Q: Using the dotplot of % Bachelor's Degree below, determine the range, IQR, variance and standard…

A: Given dot plot is Data from the dot plot is,19,20,24,25,27,27,28,29,29,32,32,33,35,36,49Arrange the…

Q: Find the mean and standard deviation for the individualized instruction scores. Scores…

A:

Q: The following data set represents performance scores from a sample of participants in a psychology…

A: The formula to find sample standard deviation is as follows,  s = ∑ x2-∑x2nn-1

Q: Use the grouped data formulas to find the indicated mean or standard deviation. For the following…

A: Given data is Height (in inches) Frequency 50 - 52 5 53 - 55 8 56 - 58 12 59 - 61 13 62…

Q: Q2 (c): According to the above frequency distribution table, the :value of mean deviation (MD) is

A: here given grouped frequency distribution

Q: Range =  Standard Deviation =

A: here given data 24 children , n =24

Q: The mean temperature in Amman for the month of October is 23 degrees with a standard deviation of…

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Q: Rico used the Internet to survey the per quart of synthetic motor oil for his high-performance…

A: Calculate Sample Standard deviation (S) from the following grouped data X Frequency 372.20 1…

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults doors, and those…

A: Here we need to find the indicated iq score.

Q: Q - 3 From the following distribution, determine the quartile deviation. Height ( inches) No. of…

A: Given that, Height (inches) 30 35 40 45 50 No. Of students 5 15 20 12 8 We need to find the…

Q: PLEASE SHOW WORKING     Based on the data set below, what is the standard deviation? 28…

A: we hope the last data value is 4 only (not a double digit value?)

Q: For the data from a sample shown below, answer the questions. Round to 2 decimal places. 26.4 29.3…

A:

Q: The coefficient of variation for a data set is the mean divided by the standard deviation, expressed…

A: The provided statement is "False".

Q: Q7 / For the data in the frequency table below, find the value of the standard deviation Class…

A: The following is the formulae for the Standard deviation of Frequency distribution…

Q: for the following sets of data, calculate the mean and standard deviation of the data. describe the…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: The mean critical reading score for seniors who took the SAT in 2018 was 536. If the standard…

A: Given Mean μ=536, standard deviation σ=115  X=435

Q: ind the z-score for the value 89, when the mean is 55 and the standard deviation is 4. A 7-8 25

A:

Q: Q1 For the tabulated data, find the (a) mean, (b) median, (c) mode, (d) standard deviation. Classes…

A: The table helps to find the value mean, median, mode and standard deviation. classes Frequency,fi…

Q: A standardized test has a mean of 88 and a standard deviation of 12. What is the score at the 90th…

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Q: Find the mean and standard deviation for the individualized instruction scores. Scores…

A: From the given information, Consider, X =Scores and Y = Individualized Instruction x f 50-59 2…

Q: Take the following set of scores and calculate the range, variance, and standard deviation (show…

A: We have given that data  1, 2, 3, 4, 5, 6, 7, 8, 9, 10 Range = maximum - minimum

Q: Using your calculator, find the range and standard deviation, round to two decimals places: The…

A: List of formulae : Range = Maximum value - Minimum value Sample standard deviation : s = ∑x2-∑x2nn-1

Q: find the mean and standard deviation for A B C Sample a: 12. 21.30 Sample b: 70, 79,88 Sample…

A: Given information- We have given 3 samples. Sample a, sample b, sample c. We have to find the mean…