26 randomly selected... 26 randomly selected students were asked the number of movies they watched the previous week. The results are as follows:\[\begin{array}{|c|c|c|c|c|c|}\hline\# \text{ of Movies} & 0 & 1 & 2 & 3 & 4 \\\hline\text{Frequency} & 6 & 5 & 10 & 1 & 4 \\\hline\end{array}\]Round all your answers to 4 decimal places where possible.- The mean is: [ ]- The median is: [ ]- The sample standard deviation is: [ ]- The first quartile is: [ ]- The third quartile is: [ ]What percent of the respondents watched at least 3 movies the previous week?[ ] %81% of all respondents watched fewer than how many movies the previous week?[ ]

Number of moviesFrequency06152103144

Answered: 26 randomly selected students were…

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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4.2.55 Question Help A committee consists of five executives, three women and two men. Their names are Christine (C), Barry (B), Francisca (F), Trevor (T), and Olivia (0). The committee needs to select a chairperson and a secretary. It decides to make the selection randomly by drawing straws. The person getting the longest straw will be appointed chairperson, and the one getting the shortest straw will be appointed secretary. The possible outcomes are shown in the accompanying table. Here, for example, CF represents the outcome that Christine (C) is appointed chairperson and Francisca (F) is appointed secretary. List the outcomes constituting each of the four events below. Click the icon to view the outcomes of the committee selections. Event E, is defined as the event a male is appointed chairperson. What outcomes constitute event E, ? О А. СВ, СТ, FB, FT, ОB, ОТ, ВС, BF, ВО, ВТ, тс, TF, ТО, ТВ В. ТС, TF, ТО, ТВ C. CF, CO, CB, FC, FO, FB, OC, OF, OB D. BC, BF, BO, вт Outcomes of…
P(1, 6) 6 4 3 2 Q(7, 2) 1 2 3 4 5 6 7 d = type your answer... 1.
(adapted from Johnson, 1980) Each semester, there are seven sections of a particular biology course, taught at various times by various instructors. The table below shows the number of students who selected each of the seven sections in Fall 2016. Do the data suggest that students have a preference for certain sections of the course? Perform a test of hypothesis using a = 0.05. In answering, be sure to address each of the five steps in a test of hypothesis. Number of students 1 18 2 12 3 25 Section 4 23 5 8 6 19 7 14
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Which of the following ensures a sample is representative of its population? The sample is convenient. The sample has properties that are matched to those in the population. The sample is the same size as the population. The sample is unique.
yansons lunch to go wants to know if there is a difference in customer satisfaction at any of the 3 locations. 500 customers were surveyed at each of the three locations, and the results of the survey is highlighted below dissatisfied one is 25 two is 10 and 3 is 40 satisfied one is 475 two is. 490 and three is 460. and totals are all 500. what is the correct degrees of freedom needed if you were to calculate X2 test statistic ?
. Assume that the box contains balls numbered from 1 through 28, and that 3 are selected. A random variable X is defined as 3 times the number of odd balls selected, plus 4 times the number of even. How many different values are possible for the random variable X?
groups by cholesterol levels, high and low. In 1950 there were 1120 people in the low cholesterol group, 20 of whom were found to have had a previous heart attack. Over the next 8 years (until the end of 1958) 66 more (new) heart attacks occurred in this group. In 1950 among those in the high cholesterol group (n=1127) there were 27 that were shown to have had a previous heart attack. Over the next 8 years, (until the end of 1958) 135 new heart attacks occurred to members of this group. What was the prevalence of heart attacks in the low cholesterol group in 1950? What was the prevalence of heart attacks in the high cholesterol group in 1950? What was the incidence rate of heart attacks in the low cholesterol group from 1951 until the end of 1958?

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