2. The following stemplot gives data on the playback time (in hours) for a sample of 22 randomly selectedMP3 players. In this stemplot, 4/2 represents 42 hours of playback.a)1|32/13356893145588410012775161377|1en below. Fill in the missing information. Use the methoddiscussed in the textbook and course videos for finding Q3 by hand.Minimum13Q126MedianMax71(by hand) whether or notQ3there are any outliers. If so, what values are they? Show your calculations!

Answered: Image /qna-images/answer/5c5d30d4-9a7c-43f0-bcc7-47dbcad4bc96.jpg

Answered: 2. The following stemplot gives data on…

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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The table below shows the number of fatal heart attacks in 19 selected European Union countries during 2014 along with the 2014 debt-to-GDP ratios for these countries in 2014. Compare the coefficients of variation and comment on your findings. Country Fatal Heart Attacks 2014* Debt to GDP Ratio** 1 Austria 14,521 225% 2 Belgium 7,792 327% 3 Czech Republic 26,171 128% 4 Denmark 3,943 302% 5 Finland 10,338 238% 6 France 33,513 280% 7 Germany 121,471 188% 8 Greece 12,200 317% 9 Hungary 32,138 225% 10 Ireland 4,283 390% 11 Italy 69,653 259% 12 Netherlands 8,956 325% 13 Poland 38,642 134% 14 Portugal 7,456 358% 15 Romania 50,667 104% 16 Slovakia 13,381 151% 17 Spain 32,564 313% 18 Sweden 12,617 304% 19 United Kingdom 69,325 252%
Suppose that the mean weight of a particular type of ripe tomato is 155 g, and the variance of the weight of this type of ripe tomato is 576,2. A random sample of n = 36 such ripe tomatoes is obtained. (i) What is the approximate distribution of the sample mean weight of the random sample of 36 ripe tomatoes? D Focus 646 words Accessibility: Investigate 18/01/ ver S Seart 50oalitu. 目

A population consists of the following 6 values: {10, 20, 30, 40, 50, 60}. A sample of size 3 will be chosen from this population without replacement and the median of the sample will be computed: { (0.5 (£n/2 + £n/2+1) m = x(n+1)/2 n odd n even In other words, in a sample of size n = 3 ordered from smallest to largest the median is the 2nd number. The median of a discrete random variable, μ, is defined as the value of such that and P(X M) ≤ 0.5 Determine the median of the population. Think of the population as an equally likely sample space. Determine the sampling distribution of the sample median, m for this population by (1) identifying all possible samples (how many are there?), (2) calculating the median in each sample and (3) using that to determine the probability of each median. Calculate E (m) Determine the standard error or the sample median
A sports company is struggling during corona epidemic. This sports company uses this time in analysis to make profit when time is right. The company was doing analysis of the last digit of their jerseys, which were most sold during the FIFA world cup. The company hires you to test the claim that the last digit of jerseys from the population which has different frequency, SRS of 300 sports fans are randomly selected. The table is formed from the results. Last digit o 1 2 3 |5 |6 |7 36 37 4 8 9 Frequency 30 35 24 25 35 27 27 24 The company assigns you the tasks: 1) What are the observed and expected frequencies for their last digit of 7? Choose one of the following: a) 7.7 b) 27.27 c) 27.30 d) 30.27 e) 7.27
A watch manufacturer claims that their watches on average will neither gain nor lose time during a week. A sample of 18 watches provided the following gain (+) or losses (-) in seconds per week. -0.61 -0.37 -0.38 -0.32 +0.32 -0.23 -0.20 -0.68 -0.10 -0.20 -0.38 -0.48 -0.47 -0.64 -0.04 +0.30 +0.25 +0.05 (a) What is the point estimate for the true average gain or losses in seconds per week of the watches produced by the manufacturer? (b) Find the 98% confidence interval for the mean gain or loss in time for the watches. (c) Test, at the 0.02 level of significance, whether the mean gain or loss in time for the watches is 0. Is the manufacturer’s claim correct? (d) Compute the p-value for the test in (c). (e) State the assumption for the test in (c). (f) Are the results of (b) and (c) consistent?
Q 4: Mr. Ahmed who is a manager at PVR Multiplex Muscat has conducted a survey to investigate the number of people visited the theatre in the last 30 days. The number of people visited the theatre in the last 30 days are: 30, 36, 39, 37, 36, 54, 38, 33, 37, 33, 33, 36, 32, 48, 42, 38, 36, 35, 30, 33, 39, 37, 33, 36, 30, 39, 44, 32, 44 and 50. Find out the grouped frequency distribution using 5 classes. Which graph will be suitable to present the grouped frequency distribution? Give reasons to your answer Cumulative frequency and relative frequency are same. Discuss critically
Suppose you compile all possible samples of 25 children of preschool age in your school district. If you calculate the mean of each sample (M) and create a frequency distribution of these means, this distribution is referred to as the
10 of 17 > Suppose that the following frequency table contains data on the number of absences in a school year due to illness or injury for 80 randomly selected high school students. Use the table to determine the median number of absences for these 80 students. Provide your answer with precision to one decimal place. Number of Frequency absences 20 1 9. 2. 11 8 4 10 6. 4 3 8 3 9 1 10 11 Click to download the data in your preferred format. Crunchlt! CSV Excel JMP Mac Text Minitab PC Text R SPSS TI Cale median = absences 8

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