Costs of Utilities The frequency distribution represents the cost (in cents) for the utilities of states that supply much of their ownpower. Construct an ogive for the distribution.Class boundaries7.5-11.511.5 15.515.5 19.519.5 23.523.5-27.527.5 - 31.531.5 35.5Send data to ExcelPart 1Part: 0/22Less than 7.5Less than 11.5Less than 15.5Less than 19.5Less than 23.5Less than 27.5Less than 31.5Less than 35.5Frequency68332Construct a cumulative frequency distribution with 7 classes.Skip Part20CumulativefrequencyCheck AnswerSave For LaterSubmit AssignmentQUEElise | Privacy Center

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Answered: Construct a cumulative frequency…

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 average final exam score for the statistics course is 74%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is lower. The final exam scores for the 11 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 76, 78, 77, 67, 63, 79, 50, 63, 70, 63, 66 What can be concluded at the the a = 0.01 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?v Select an answer Hj: ? vSelect an answer v c. The test statistic ? v (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? va f. Based on this, we should Select an answer |the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the populaton mean is significantly lower than 74 at a = 0.01, so…
The following scores were obtained by a college sophomore class on an English exam: \table [[60, 94, 75, 82, 72, 57, 92, 75, 85, 77, 91], [72, 85, 64, 78, 75, a. Construct a frequency distribution of the ungrouped scores
Suppose the commuting time on a particular train is uniformly distributed between 34 and 54 minutes. What is the mean commuting time?
The average final exam score for the statistics course is 74%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is lower. The final exam scores for the 12 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 51, 86, 77, 86, 66, 59, 66, 76, 55, 59, 57, 80 What can be concluded at the α = 0.10 level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion H0:H0: ? μ p Select an answer = ≠ > < H1:H1: ? p μ Select an answer = > < ≠ The test statistic ? t z = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)
Use flat random numbers to estimate .
Suppose that the time spent by children in front of the television set per year has the distribution N(1500, 250) What proportion of children spend less than 1000 hours in front of the television?
with a poisson of 3 choose 12 specimens of cast iron what should be the distribution of the average number of inclusions you should expect in it
Use Table, to draw a random sample (without replacement) of size 5 from a population of 24 units.
Let p be the population proportion for the following condition. Find the point estimates for p and q. Of 952 children surveyed, 108 plan to join the armed forces in the future. Part 1 The point estimate for p, p^, is ___ The point estimate for? q,q^, is ___
Do all the cards look correct? And the one that says " the spread of the data (range) is 20" which group does that one belong to?
If the grades of students in Principles of statistics are distributed through the N ( 60 , 100 ) , then the percentage of students with grades between 65 and 70
What Proportion of College Students Have a Paying Job? The Higher Education Research Institute conducts Your First College Year survey every year. The 2018 survey1 included 5204 first-year, full-time college students. Their responses to a question about whether they worked at a paying job while attending college are given in the table below.1 https://heri.ucla.edu/briefs/YFCY/YFCY-2018-Brief.pdf Paying job? Frequency Works on campus 1436 Works off campus 1119 Does not work 2649 Total 5204 Proportion of first-year full-time students with a job (a) What proportion do not work at a paying job? Round to three decimal places. (b) What proportion do work at a paying job (either on campus or off campus)? Round to three decimal places. (c) Make a relative frequency table of this variable. Round to three decimal places. Paying job? Relative Frequency Works on campus Works off campus Does not work Total

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