Three statistics classes all took the same test and the histograms of the test scores are shownto the right. Complete parts a through c.a) Overall, which class do you think performed better on the test? Why?Classb) How would you describe the shape of each distribution?The distribution for class 1 isThe distribution for class 2 isThe distribution for class 3 isc) Match each class with the corresponding boxplot.Class 1 corresponds to boxplotClass 2 corresponds to boxplotClass 3 corresponds to boxplotandandandScores100-80-60-40-20# of StudentsHOH14.99performed better on the test because both the mean and the median for that class are the highest out of all three classes.60Class 190of StudentsPRADE3060 90Class 2of StudentsP.N.A.P.9,3060 90Class 3

Given the histograms of the test scores of three statistics classes who took the same test as

Answered: Three statistics classes all took the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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On the first day of class, a statistics professor asked her students to report their grade point averages (GPAs) as part of a class survey. For those students who knew their GPAs, the histogram was: The distribution is:
Under each Histogram, write a comment about the shape of the distribution (for example, Symmetric, Skewed (left/right), Uniform or Irregular) Students Frequency Frequency of Students 9 1 0 9 8 1 0 2.0 2.40 1 2 Histogram of Students College GPA 9 2.4 6 4 2.56 Histogram of Students Predicted GPA 9 4 2.8 College GPA 3 2 2.72 Predicted GPA 3.2 3 2.88 3 3 2 3.6 3.04
What is the total number of scores for the distribution shown in the following table? X f 4 1 3 3 2 7 1 2 Select one: a. 14 b. 13 c. 11 d. 24
DIRECTION: Read and answer the following questions. Write the letter of your choice on the spaces provided before each number. (Remembering) 1. The frequency distribution of sample means taken from a population. A. sampling distribution of sample means B. mean C. variance D. histogram 2. It is also called the expected value. A. sampling distribution of sample means B. mean C. variance D. histogram 3. It states that the sampling distribution of the mean approaches a normal distribution as the sample size increases. A. Central Limit Theorem B. standard error of the mean C. normal distribution D. sample size 4. The population is spread perfectly symmetrical with standard deviations around the mean value. A. population B. Central Limit Theorem C. sample size D. normal distribution えー! 5. In the formula Z = represents : Vn A. sample mean B. variable C. population mean D. standard deviation 6. It is the standard deviation of the sampling distribution of the sample mean. "B. standard…
The heights (to the nearest inch) of 30 males are shown below. Construct a frequency distribution and a frequency histogram of the data using 5 classes. Describe the shape of the histogram as symmetric, uniform, negatively skewed, positively skewed, or none of these. 67 76 70 68 72 68 65 63 76 69 66 72 66 66 69 73 62 62 71 73 70 72 71 65 68 66 74 72 68 69 ... Question content area right Part 1 Construct a frequency distribution of the data using 5 classes. Use the minimum data entry as the lower limit of the first class. Use the smallest whole number class width possible. Class Frequency Midpoint enter your response here –enter your response here enter your response here enter your response here enter your response here –enter your response here enter your response here enter your response here enter your…
A. Find the mean, median, mode, Q,, Q,, D, P3s, and Prn of each of the following data sets. Make a boxplot for each distribution. 1. 157, 133, 232, 267, 289, 274, 321, 348, 188, 432
What are the mean, median, and mode, respectively, for the data set 0 3 3 0 1 0 42 ? A) 1, 1, and 1 B) 42, 0, and 0 C) 7, 0, and 0 D) 7, 1, and 0
could you please answer with paper and pen?
The average final exam score for the statistics course is 43%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is larger. The final exam scores for the 19 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 54, 38, 45, 47, 42, 42, 48, 38, 56, 51, 46, 41, 43, 41, 37, 40, 53, 43, 43 Copy to clipboard What can be concluded at the = 0.05 level of the significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? Select an answer H1: ? Select an answer c. The test statistic ? v (please show your answer to 3 decimal places.)

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