(e) Determine the mean and standard deviation number of credit cards from the probability distribution found in part (c).The mean iscredit cards.(Type an integer or a decimal. Do not round.) One question from a survey was "How many credit cards do you currently have?" The results of the survey are provided. Complete parts (a) through (g) below.Credit card survey results0.2-0.1o'2 '4'6'8 '1010ledit cards, x# of credit cards, xProbability, P(x)14 N 3 21 O Nn N M 2N M N rM N 5 CN M 7 N 3 3 2N-54 3 3 3 0 33n 3 3 N3 N N ¢ ¢ Nm 0 N N14 13 33 3 3 N ¢ ¢ 2 12 37 2 은 332 1 32 5 2 22 은 3 2 31m N M N 5 2 3 N ¢ N

Answered: One question from a survey was "How…

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 rating is the percentage of households with TV sets that watched the program. Top Rated TV Programs: 2007-2008 Top Rated TV Programs: 2012-2013 Program Rating Program Rating Survivor: China 9.0 How I Met Your Mother 3.7 Without a Trace 8.8 Family Guy 3.6 The Moment of Truth 8.8 Once Upon a Time 3.6 Two and a Half Men 8.5 Survivor: Philippines 3.5 60 Minutes 8.4 X-Factor Wednesday 3.5 Criminal Minds 8.2 NCIS: LA 3.4 7.9 American Idol - Tuesday American Idol - Wednesday 16.1 15.9 NBC Sunday Night Football Big Bang Theory 6.2 Send data Excel Part 1 of 2 (a) Find the population standard deviation of the ratings for 2007-2008. Round the answer to at least two decimal places. The population standard deviation of the ratings for 2007-2008 is %. Part 2 of 2 (b) Find the population standard deviation of the ratings for 2012-2013. Round the answer to at least two decimal places. Espar 昆 M
Boand The Calege Entrance Examination Board was not involved in the production of this material Used with permission Copynight 2010 National Math Science Intative, Dalas, Texas. All rights reserved. Visit us online at www.nms.org. AP is a trademark of the College Entrance Ex atistics StatCorp Exploration Below are the monthly salaries for all 16 employees of the StatCorp Data Analysis Corporation. Answer the questions that follow by yourself or with a partner. Monthly salaries: 6,350 6,125 6,500 2,800 12,800 7,500 5,859 7,400 5,760 7,350 7,250 6,000 2,500 2,500 5,230 5,100 1. Find the mean, median., and standard deviation of employee's salaries. mean = median = standard deviation = 2. Business has been good, so every emplovee receives a raise of $1,000. What will happen to the mean, median, and standard deviation? The mean will The median will The standard deviation will Check yourself: median = standard deviation = mean = 3. Business has not been good. Suppose that we must cut…
The second slide is the first part of the question and the first slide is the second part of the question
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In an experiment, college students were given either four quarters or a $1 bill and they could either keep the money or spend it on gum. The results are summarized in the table. Complete parts (a) through (c) below. Students Given Four Quarters Students Given a $1 Bill Purchased Gum 25 16 pivuuvilly | |- (Round to three decimal places as needed.) c. What do the preceding results suggest? Kept the Money D 12 30 LEED OA. A student given four quarters is more likely to have spent the money than a student given a $1 bill. B. A student given four quarters is more likely to have kept the money than a student given a $1 bill. C. A student given four quarters is more likely to have kept the money. OD. A student given four quarters is more likely to have spent the money.
Using the table in part see please anser question in part e.
A programmer plans to develop a new software system. In planning for the operating system that he will use, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 99% confident that his estimate is in error by no more than three percentage points? Complete parts (a) through (c) below. Question content area bottom Part 1 a) Assume that nothing is known about the percentage of computers with new operating systems. n=enter your response here (Round up to the nearest integer.) Part 2 b) Assume that a recent survey suggests that about 90% of computers use a new operating system. n=enter your response here (Round up to the nearest integer.) Part 3
Need help with this Intro to probability and statistics homework problem. Below the homework problem is the answers from the textbook. Make sure your handwriting is neat and readable.
Statistical Software Section Directions: Please use statistical software to make all the calculations. For parts a) – e) there will be no hand calculations. Please provide all statistical output with this section. 15) The following table gives the total 2004 payroll (on opening day of the season, rounded to the nearest million dollars) and the percentage of games won during the 2004 season by each of the American League teams. Total Payroll |(millions of $) Percentage Winning Team Angels 101 56.8 Orioles 52 48.1 Red Sox 127 60.5 White Sox 65 51.2 Indians 34 49.4 44.4 Tigers Royals 47 48 35.8 Twins 54 56.8 Yankees 184 62.3 Athletics Mariners Devil Rays Rangers Blue Jays 59 56.2 82 38.9 30 43.5 55 54.9 50 41.6 a. Calculate the sample correlation coefficient and interpret. b. Test at the 5% significance level whether there is a positive correlation between payroll and wining percentage for the American League teams. Please set-up the null and alternative hypothesis, state the p-value,…
please send answer
Some states now allow online gambling. As a marketing manager for a casino, you need to determine the percentage of adults in those states who gamble online. How many adults must you survey in order to be 90% confident that your estimate is in error by no more than one percentage point? Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of adults who gamble online. n=0 (Round up to the nearest integer.) b. Assume that 18% of all adults gamble online. n= (Round up to the nearest integer.)
A polling company reported that 37% of 1018 surveyed adults said that rising gas prices are "very harmful." Complete parts (a) through (d) below. a. What is the exact value that is 37% of 1018? The exact value is. (Type an integer or a decimal.) b. Could the result from part (a) be the actual number of adults who said that rising gas prices are "very harmful"? Why or why not? O A. No, the result from part (a) could not be the actual number of adults who said that rising gas prices are "very harmful" because that is a very rare opinion. O B. No, the result from part (a) could not be the actual number of adults who said that rising gas prices are "very harmful" because a count of people must result in a whole number. O C. Yes, the result from part (a) could be the actual number of adults who said that rising gas prices are "very harmful" because the results are statistically significant. D. Yes, the result from part (a) could be the actual number of adults who said that rising gas prices…

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