A population of twelve (N = 12) children were asked to complete a vocabulary test. The number of errors were recorded as follows: # errors (X)   X2 9 81 11 121 12 144 12 144 12 144 12 144 13 169 13 169 13 169 14 196 16 256 43 1849   ΣX = 180 ΣX2 = 3586   Use statistics concepts to determine whether the dataset is normal, positively skewed, or negatively skewed. Explain your choice. Calculate SS, σ2, and σ for these data.

Q: Determine if a data set is skewed Question Which of the following frequency tables show a skewed…

A: The frequency table 1 is skewed right as the distribution starts with a low frequency suddenly…

Q: Suppose that you gather a sample of 34 sea turtles from location A and measure their lengths, and…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: Calculate the range, population variance, and population standard dev espectively, for the following…

A: Answer Given,-5, 6, 3, -5, -7, -7, 8, -25The sample size [n] = 8

Q: umber summary for the follc 22 48 79 78 ammary is order. Type integers or decir

A: Given : The given data is 2, 8, 13, 22, 40, 48, 70, 74, 77, 78, 79, 81

Q: The following data set belongs to a population: 4−820−1313109 Calculate the mean, median, and mode.

A:

Q: Here is a set of data. 1 8 231 254 256 257 481 541 580 592 629 650 693 755 Identify the 5 number…

A:

Q: Given the data set of X = {3, 5, 5, 6, 9, 11}, find the IQR. O 5.5 06 04

A: Inter quartile range is the difference between the upper quartile and lower quartile.

Q: Source ment SS df MS

A: By using one way ANOVA test for a single factor,a) The Null and alternative hypotheses:Ho:  µ1 = µ2…

Q: he results are shown in the table below: Number of Bicycles Frequency 15 1 30 20 3 15 4 15 What is…

A: We have given that,  x :-  0     1      2      3     4      5 f :- 15   30   20    15   15     6…

Q: Consider a data set containing the following values: 93 83 85 95 97 90 86 91   The mean of the given…

A: Here the given data values are :-93 , 83 , 85 , 95 , 97 , 90 , 86 , 91And the mean of the given data…

Q: Construct a stem-and-leaf display for the following data. (Enter numbers from smallest to largest…

A: Arrange the data in ascending order : 6.5, 7.5, 7.5, 7.9, 8.3, 8.3 , 8.8 , 8.8 , 9.7, 9.8, 10.2,…

Q: The following is a partial histogram illustrating the course grade distribution for an introductory…

A: A partial histogram depicting the percentage of total students that took different courses, is…

Q: Consider the two following sample data sets. Notice that each observation in Data Set 2 is 10 more…

A:

Q: Consider the following observations from a population:   156 263 61 116 116 49 207 131 61    Click…

A: Given problem Given that   Given observations 156 263 61 116 116 49 207 131 61   a) Mean : It is…

Q: Data was collected for 300 fish from the North Atlantic. The length of the fish (in cm) is…

A: Solution- From given bar graph Class (length of fish in cm) frequency  220-222   222-224…

Q: To describe the data, start by answering the following: How many elements are there in the data set?…

A: 1.A dataset given: 2. There are 100 Elements in the dataset. They are Customers 1,2,3,4,...,100. 3.…

Q: Calculate the mean (all the three types) from the following data and comment on your solutions.…

A: Mean is the measure of central tendency. There are three types of mean. They are arithmetic mean,…

Q: Consider a data set containing the following values: 93 83 85 95 97 90 86 91 The mean of the given…

A:

Q: State the Five Number Summary for the following dataset. 44   45   46   47   49   51   54   55   58…

A:

Q: 11q10 Find the 5 number summary for the data shown 20 24 25 30 33 41 42 44 56 65 76 79 89 92 5…

A:

Q: please Do in R and R studio please, thank you!

A: Sure, I can help you analyze the data set to identify outliers.There are several ways to detect…

Q: 11) Determine the Interquartile Range of the set of data. Show all work.

A: Given data set:- 1,3,3,7,8,8,11,14,15,19,21,21,21 Ther are given 13 data points

Q: Find the 5 number summary for the data shown 9 13 19 28 50 51 61 73 77 78 85 94 5 number summary:…

A: Given,sample size(n)=12given data is already arranged in ascending…

Q: The following histogram represents final exam grades for a math dass. Number of Students 0. 40 50 60…

A: Given data, 45 60 61 61 62 71 72 73 76 78 79 81 85 87 88 91 97 98.

Q: Flu season: Suppose the following tables present the number of specimens that tested positive for…

A:

Q: Find the oefficient of variation for the following data sets. 2. Which data set has more variation?…

A: Solution

Q: In this problem, we explore the effect on the mean, median, and mode of adding the same number to…

A: Given data set : 2, 2, 3, 6, 10.

Q: The weights, in pounds, of packages on a delivery truck are shown in the stem-and-leaf plot. Find…

A: The data on first row 03,06The data in the second row 10,13,14,17Using this the above data is…

Q: A sample of blood pressure measurements is taken from a data set and those values (mm Hg) are listed…

A: The number of observations in systolic blood pressure is 10.

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.