The weights in grams of 50 apples picked at random froma consignment are as follows :106, 107, 76, 82, 109, 107, 115, 93, 187, 195, 123, 125, 111, 99, 86, 70, 126,68, 130, 129, 139, 119, 115, 128, 100, 186, 84, 99, 113, 204, 111, 141, 136, 123, 90,115, 98, 110, 78, 90, 107, 81, 131, 75, 84, 104, 110, 80, 118, 82.Form the grouped frequency table by dividing the variate range intointervals of equal width, each corresponding to 20 gms. in such a'way that themid-value of the first class corresponds to 70 gms.

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Answered: The weights in grams of 50 apples…

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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What is the standard of 15.50, 15.75, 13.15, 13.75, 17.50, 17.18, 16.05, 15.25, 15.80, 16.10, 17.80, 15.20, 18.01, 17.98, 15.68, 15.20, 18.01, 17.98, 15.68, 15.20, 17.40, 16.00, 15.15, 16.25
1132,510,1231,581,421,863,1490,682,1274,1183,945,1135,737,1068,946,1630,1037,2194,1357,443 find a) 57 th percentile b) percentile rank of 1037
A random sample of 40 college professors is selected from all professors at a university. The following list gives their ages. 68, 46, 44, 45, 39, 59, 45, 40, 47, 24, 58, 64, 52, 46, 68, 67, 59, 41, 50, 21, 37, 60, 41, 47, 37, 38, 40, 37, 27, 47, 69, 39, 31, 42, 25, 39, 44, 33, 30, 51. Construct a stem-and-leaf plot for the data. Complete parts a. and b. a. Determine the leaves for each corresponding stem. Complete the table below. (Use ascending order.) Stem Leaves 2. 6. b. What does the shape of the display reveal about the ages of the professors? O A. The greatest number of college professors are in their 40s. OB. None of the college professors live to be 70 years old. O C. If you are younger than 30, you cannot be a college professor. SAMSUNG 2 34
A veterinarian keeps track of the types of animals treated by an animal clinic. The following distribution represents the percentages of animals the clinic has historically encountered. Animal type Dogs Cats Livestock Birds Other Percent 61% 22% 8% 6% 3% If the animal clinic treats 230 animals in a month, how many of each animal type would be expected? Animal type Dogs Cats Livestock Birds Other Вxреcted 61 22 8. 9. 3) Animal type Dogs Cats Livestock Birds Other Еxpected 122 44 16 12 Animal type Dogs Cats Livestock Birds Other Еxpected 51 18 14 7. 140 Animal type Livestock Birds Other Dogs Cats Еxресted 46 46 46 46 46 Animal type Dogs Cats Livestock Birds Other Expected 140,3 50.6 18.4 13.8 6.9 E.
1. Explain the difference between z-tests (which use categorical data), and t-tests (which use numerical data). 2. Conduct a t-test, both when given statistics, and when given data. 3. Conduct a t-test, 2-sample t-test, and paired t-test. 4. Differentiate between the five types of tests we have learned so far.
Example 1. The weights (in grams) of 40 oranges picked at random from a basket are as follows : 45, 5, 30, 110, 75, 100, 40, 60, 65, 40, 100, 75, 70, 60, 70, 95, 85, 80, 35, 45, 10, 50, 60, 65, 55, 45, 30, 90, 85, 75, 85, 75, 70, 110, 100, 80, 70, 55, 30, 70. Represent the data by means of a histogram.
How many 4-letter code words can be made using the letters in the word pencil if repetitions are permitted? If repetitions are not permitted? Topic: Sampling
A survey group divides Anthem into 400 regions. They will randomly select 25 regions to survey about impressions of a new shopping center. Select the first 4 regions that they should survey, using the random numbers generated below. 10640 16898 39235 65662 29821 23895 92685 51762 78094 106, 401, 689, 839 O 10, 64, 01, 68 O 106, 168, 392, 656 106, 235, 123, 176
there are 15 costumers that has these data below: 6,9,7,5,15,10,9,7,4,9,10,9,8,6,7 find: a) mean time b) median time c) lower quartile among service time d) upper quartile among service time
36. How many distinct permutations can be made from the letters of the word STATISTICS?
Twenty five randomly selected students were asked the number of movies and series they watched the previous week and the data of their watching history are given below: Movies watched: 5, 7, 8, 10, 0, 9, 1, 3, 0, 1, 1, 5, 4, 3, 2, 1, 2, 0, 1, 3, 2, 6, 7, 4, 10 Series watched: 5, 8, 7, 10, 5, 15, 4, 11, 14, 9, 9, 6, 5, 8, 10, 4, 5, 8, 8, 12, 7, 9, 12, 13, 7 a) Find out the five number summary for the datasets above. b) Develop box and whisker plot for the students who watched movies and series. What conclusion can you make from their watching history?
A random survey of enrollment at 2020 community colleges across the United States yielded the following figures: 21,912; 2,160; 9,414; 7,681; 3,200; 17,500; 9,200; 7,380; 18,314; 6,557; 13,713; 17,768; 7,493; 2,771; 2,861; 1,263; 7,285; 28,165; 5,080; 11,710. (A) Assume the underlying population is normal. i.) xˉ= ii.) sx= iii.) n= iv.) n−1= (B.) Construct a 97%97% confidence interval for the population mean enrollment at community colleges in the United States. Enter your answer in interval notation.Round your answer to the nearest integer.Do not round any intermediate calculations.

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