4.) Starting Salaries. Starting Salaries (in thousands of dollars) for social workers with a Bachelor of Science degree andno experience are shown for a random sample of 25 different social workers.2728 29313328 28 29 31 3330 32 3332 3428 2828 2930282930 32 34a.) Construct a frequency distribution. Let each class have a width on one.b.) Construct a histogramc.) Construct a frequency polygond.) Construct a stem-and-leaf display

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Answered: 4.) Starting Salaries. Starting…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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1. A researcher plans to conduct a survey among students in a public high school. If the population of thisschool is 5,000, find the sample size and the percentage from the N population. (Margin of error is 5%)A = {9,10,11,7,13}B = {10,10,10,10,10}C = {1,1,10,19,19}a. Calculate the mean of each data set.b. Calculate the standard deviation of each data set.c. Which set has the largest standard deviation?
4. The numbers of incorrect answers on a true-false test for 15 students were recorded as follows: 2, 1, 3, 0, 1, 3, 6, 0, 3, 3, 5, 2, 1, 4, 2. Find the median and the mode.
SIS Travel Agency, a nation wide local travel agency, offers special rates on summer perlod. The owner wants additional information on the ages of those people taking travel tours. A random sample of 50 customers taking travel tours last summer revealed these ages. 18 29 37 42 47 49 53 57 61 67 19 31 38 44 48 50 54 58 62 68 24 34 39 45 48 51 54 58 63 70 27 36 39 46 48 51 55 59 64 74 28 36 40 46 49 52 56 60 66 77 B. Determine the P15, P22, , P55, P77 of the frequency distribution and construct the graph.
12. The age of random sample of 40 people who attended a show at the fox. Theater are given below. Find the first, second, and third Quartile 20 26 31 34 39 45 50 62 20 29 31 35 40 47 51 63 23 30 32 35 40 49 51 66 23 30 33 37 40 49 54 69 26 30 34 38 42 49 57 72
When a student performs poorly on a midterm exam, the student sometimes is convinced that their score is an anomaly and that they will do much better on the final exam. The data below show the midterm and final scores (out of 100 points) for eight students in an introductory statistics class. Student Midterm Final 1 70 88 2 58 52 3 85 84 4 82 74 5 70 80 40 36 7 85 48 8 85 96 a) Construct a scatterplot for the data. Describe the pattern that you see in the scatterplot. Are there any clusters or outliers? If so, how would you explain them? b) Calculate the regression line for predicting a student's score on the final exam based on the student's score on the midterm.
Aleem tossed a coin 50 times and recorded the results in a frequency distribution table. Outcome Frequency Heads 22 Tails 28 What is the experimental probability of tossing a head?
3. The following data are the number of burglaries reported for a specific year for fifteen Metro Manila universities: 30, 18, 3, 7, 61, 11, 1, 3, 2, 12, 15, 11, 13, 14, 11 a. Mean b. Median c. Mode
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6. A study of report writing by psychologist is conducted. A scale that measures the intelligibility of psychologist English is devised. This scale, called an "index of confusion" is devised so that low scores indicate high readability. These data are obtained on articles randomly selected from psychology journals and from unpublished reports written in 2015. Unpublished reports 2.39 Journals 1.79 1.75 1.67 1.65 2.51 2.86 2.14 1.87 1.75 1.94 2.56 2.29 2.49 1.62 2.06 1.33 2.36 2.58 2.33 1.96 1.69 1.70 2.62 2.41 1.94 a. Test the appropriate hypotheses. b. Does there appear to be a difference between u, and u, ? Explain.

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4.) Starting Salaries. Starting Salaries (in thousands of dollars) for social workers with a Bachelor no experience are shown for a random sample of 25 different social workers. 27 28 29 31 33 28 28 29 31 33 28 28 30 32 33 28 29 28 29 30 32 34 30 32 34