.Seven moviegoers rated a recent film on a scale from 1 (lowest) to 5 (highest) stars.2.04.01.52.05.04.02.51. What is the modal rating for this film? (2. What is the median rating for this film? (3. What is the mean rating for this film? (4. Mathematically speaking, is this distribution skewed at all? If yes, in what way, and why do you say so?5. Caleulate the range of this distribution. (6. Calculate the standard deviation of this distribution and interpret its meaning.

The data is given to the moviegoers who rated a recent film with 7 values.

Answered: .Seven moviegoers rated a recent film…

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 college physical education department offered an advanced first aid course last summer. The scores on the comprehensive final exam were normally distributed, and the z-scores for some of the students are shown below. Robert 1.24 Juan 1.66 Haley −1.84 Joel 0.00 Jan −0.84 Linda 1.68 Which of these students scored above the mean? (Select all that apply.) Which of these students scored on the mean? (Select all that apply.) Which of these students scored below the mean? (Select all that apply.) If the mean score was μ = 140 with standard deviation σ = 15, what was the final exam score for each student?
(a) TV stations use ratings to decide which shows to keep or cancel. Therefore, the A. C. Nielsen Company collects data on the TV viewing habits of Americans and publishes the information in Nielsen Report on Television. Suppose that you want to use a paired sample to decide whether the mean viewing times of married men and married women differ: 1. Identify the variable. 2. Identify the two populations. 3. Identify the pairs. 4. Identify the paired-difference variable.
Over the first five years of owning her car, Gina drove about 12,700 miles the first year, 15,478 miles the second year, 12,675 the third year, 11,850 the fourth year, and 13,075 the fifth year. a. Find the mean, median, and mode of this data. b. Explain which measure of central tendency will best predict how many miles Gina will drive in the sixth year. a. mean= 12,700; median= 13,156; no mode; the mean is the best choice because it is representative of the entire data set. b. mean= 13,156; median= 12,700; mode= 3,628; the median is the best choice because it is not skewed by the high outlier. c. mean= 13,156; median= 12,700; no mode; the mean is the best choice because it is representative of the entire data set. d. mean= 13,156; median= 12,700; no mode; the median is the best choice because it is not skewed by the high outlier.
Commercial break: Following are the amounts spent (in millions of dollars) on media advertising in the United States by a sample of nine companies in 2013. 286.9 362.9 331.2 394.6 257.0 463.5 340 1 295.9 722 5 Send data to Exce (a) Find the mean amount spent on advertising. Round the answer to at least two decimal places. (b) Find the median amount spent on advertising.
3. At a photography contest, entries are scored on a scale from 1 to 100. At a recent contest with 1,000 entries, a score of 68 was at the 77th percentile of the distribution of all the scores. Which of the following is There were 770 entries with a score less than or the best description of the 77th percentile of the distribution? equal to 68. There were at least 230 entries with a score of 77. There were 23% of the entries with a score less than ог equal to 68. There were 77% of the entries with a score equal to 68. There were at least 77% of the entries with a score greater than 68. CLEAR ALL
1.1.2 1 ● 2 Cours 3 Learn: What. 4 5 6 T errors on a typing test. (The data shows how many mistakes each person made while typing up the same document) 5, 6, 8, 8, 9, 9, 10, 10, 10, 12 a. What is the median? / ¿Cuál es la mediana? 9 b. Interpret its value in this situation: The median tells us... / Interprete la mediana en esta situación: La mediana nos dice... It's showing that the amount of 9 errors were made (The auto correcting will look for the correct value of the median and other key words in your response.) c. What is the IQR? / ¿Qué es el RIC (rango intercuartil) en esta situación? 6
Which of the following statements is not true? There is only one median for each variable. One definition of the median states that, for an odd number of observations, the median is the middle score when scores are placed in order of magnitude. Another term for the median is 50th percentile. The median is generally more sensitive to (i.e., affected by) the presence of a few extreme observations than is the mean.
15. ACT scores The Mathematics section of the ACT test had a mean of 20.9 and an SD of 5.3 for the years 2013-2015. If these are well modeled by a Normal distribution, about what percent of students scored a) over 31? b) under 18? c) between 18 and 31?
4. Twenty-five students were asked the number of movies they watched the previous week. The results are shown below. (a) Find the mean of this sample. Number of Movies Frequency 5 9 (b) Find the median of this sample. (e) Find the mode of this sample. 0 1 234 6 4 1
8.Suppose you compare the mean of raw data and the mean of the same raw data grouped into a frequency distribution. These two means will be a. Exactly equal. b. The same as the median. c. The same as the geometric mean. d. Approximately equal.
Some Woodside customers were asked the age of their houses. The table summarizes the results. Age of Home Number of Midpoint (years) Customers 0-8 17 9-17 10 18 26 27 35 4. What are the mean and median of the age of houses? O mean 14 and median 13 O mean 12 and median 22 O mean 13 and median 13 O mean 12 and median 13
8. What Is the center of {0.1, 0.3, 0.02, 0.09, 0.4, 0.05, 0.26}? Is it the mean or the median? Which is more appropriate to use? O 0.4 0.2 0.1 0.3 New version available! (3.0.227) esc 24 4. tab b. W

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