Using the data in problem member 4, construct a histogram, a frequencypolygon and ogives.6. The data given are the weekly allowances of 70 students. Construct rela-tive frequencies.Weekly Allowances (pesos)Frequency500.00-599.998600.00-699.9910700.00-799.9916800.00-899.9915900.00-999.99101,000.00-1,199.9981,200.00-1,299.9935. Below are the scores in Algebra given to 70 students. Prepare a frequencydistribution using a class size of 6.4.6875 62 76 82 68 93 8884 906088 71857373 75 59 79 937475 95 63 87727278 65 629482696875606074 78 777867 76 7197797565 62 8588 73 62 535765747680 7872 73 76 8581 86 7775 67 63Referring to the table, determine the following:а.Lower limit of the fourth classb. Upper limit of the sixth classC.Class boundaries of the first classd. Frequency of the third classе.Class widtht.Percentage of students greater than or equal to 83g.Number of students receiving scores below 77

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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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Compare the distributions of scores. How are students distributed across the range of scores? Are the scores higher in math or verbal ability? Can you please show details and formula? Math Test 67 45 68 70 72 85 90 99 50 73 77 78 52 66 89 75 Verbal Test 89 90 78 77 75 70 56 60 77 78 80 92 98 72 77 82
The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (a) and (b) below. Actress (years) 27 Actor (years) 61 29 35 28 31 36 39 36 33 25 27 34 47 41 41 31 37 35 D 43 a. Use the sample data with a 0.01 significance level to test the claim that for the population of ages of Best Actresses and Best Actors, the differences have a mean less than 0 (indicating that the Best Actresses are generally younger than Best Actors). In this example, H is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the actress's age minus the actor's age. What are the null and alternative hypotheses for the hypothesis test? Ho Hd= 0 year(s) H₁ Hd< 0 year(s) (Type integers or decimals. Do not round.)…
The state test scores for 12 randomly selected high school seniors are shown on the 1420 right. Complete parts (a) through (c) below 698 725 Assume the population is normally distributed 626 (a) Find the sample mean (Round to one decimal place as needed) 1229 721 741 1448 982 839 547 947
The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (a) and (b) below. Actress (years) 26 Actor (years) 26 32 28 38 29 29 45 27 31 D 60 37 40 40 28 36 50 35 41 43 a. Use the sample data with a 0.01 significance level to test the claim that for the population of ages of Best Actresses and Best Actors, the differences have a mean less than 0 (indicating that the Best Actresses are generally younger than Best Actors). In this example, Hd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the actress's age minus the actor's age. What are the null and alternative hypotheses for the hypothesis test? Ho: Ha year(s) year(s) (Type integers or decimals. Do not round.)
A math professor is wondering if students today are better or worse than in the past. He has given the same final to this year's class that he gave ten years ago. Compute mean, median, and mode for both classes and write a paragraph summarizing the differences. This Year 35 45 65 75 87 80 69 71 53 90 99 95 70 82 73 93 67 61 57 74 72 77 71 81 83 Ten Years Ago 56 77 75 76 59 74 51 89 55 79 67 77 69 91 68 90 65 79 69 79 87 86 98 91 95
The following data lists the ages of a random selection of actresses when they won an award in the category of Best Actress, along with the ages of actors when they won in the category of Best Actor. The ages are matched according to the year that the awards were presented. Complete parts (a) and (b) below. Actress (years) 30 Actor (years) 27 32 30 38 27 25 45 32 36 O 58 40 38 37 28 31 51 40 40 44 a. Use the sample data with a 0.01 significance level to test the claim that for the population of ages of Best Actresses and Best Actors, the differences have a mean less than 0 (indicating that the Best Actresses are generally younger than Best Actors). In this example, H. is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the actress's age minus the actor's age. What are the null and alternative hypotheses for the hypothesis test? Ho: Hd year(s) H: Hd year(s) (Type integers or decimals. Do not round.)
The following data give the number of keyboards assembled at the Twentieth Century Electronics Company for a sample of 25 days. Calculate the following: 1st Decile, 28th Percentile, 7th Decile, and 85th Percentile.
What is the mode? Answer as an INTEGER. If necessary, round to the nearest integer. If it is not applicable or not available, type “na” instead.
The average weekly incomes, in £s, of 18 selected occupations in the United Kingdom were: 244, 146, 278, 396, 435, 641, 577, 122, 294 357, 802 730, 286, 484, 169,, 559, 208, 498 Draw a box plot to represent these incomes. - UB = - Highest = - Q1 = - Q2 = - Q3 = - Lowest = - LB = Calculate the mean weekly income and the standard deviation.
The following are (fictional) McDonald's service times (in seconds) for a random sample of drive-thru customers. 98 117 45 103 75 65 129 93 109 84 56 118 Calculate the median
This data came from ESPN.com. Listed here are the batting averages of 20 of the top 100 batters in 2014 by WAR (wins above replacement). 0.287 0.255 0.324 0.327 0.301 0.341 0.293 0.263 0.268 0.281 0.315 0.335 0.311 0.300 0.242 0.273 0.284 0.271 0.274 0.300 Include appropriate titles and labels as you complete the following: Construct a grouped frequency distribution for the data using six classes. Use the grouped frequency data for the rest of the project. Construct a frequency polygon for the data. Construct an ogive for the data.
The state test scores for 12 randomly selected high school seniors are shown on the right. 1421 1227 986 Complete parts (a) through (c) below. 692 720 831 Assume the population is normally distributed. 730 748 546 630 1448 946 (a) Find the sample mean. X = (Round to one decimal place as needed.) Enter your answer in the answer boOx and then click Check Answer.

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