An ambulance service responds to emergency calls for two counties in Virginia. One county is an urban county and the other is a rural county. A sample of 474 ambulance calls overthe past two years showed the county and the day of the week for each emergency call. Data are as follows. Do not round intermediate calculations.Day of WeekCountySunMonTueWedThuFriSatUrban59495256637142Rural51612111613Test for independence of the county and the day of the week. Using a = 0.05 level of significance, what is the p-value?Compute the value of the x test statistic (to 3 decimals). Do not round your intermediate calculation.Use Table 3 of Appendix B to find the p-value.The p-value is - Select your answer- Select your answerWhat is your c between 0.01 and 0.025between 0.025 and 0.05- Select your a between O.05 and 0.10greater than 0.10less than 0.01

There are two categorical variables which are county and day of the week. County has 2 types and Day…

Answered: An ambulance service responds to…

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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A social media app is conducting a study on the amount of time users spend on the app. They collect the following variables. Age Years: How old they are in years? Income: Monthly Income Location: What country do they live in? Device: Do they use an iPhone, Samsung, other? Service: Who provides their mobile phone service? For example: T-Mobile, At&t, Verizon, ect Hours: How many hours do they spend on the app per week. A) Which variable could the research construct a one proportion z-interval for? B) The social media app just launched a new algorithm that suggest content in an effort to increase the amount of time the user spends on the app. The researchers want to use the survey results to see if there is statistically significant evidence that on average users spend more than 10 hours per week on the social media app. The researchers found in their sample of 44 users, the mean hours spent on the app is 10.5 hours with a standard deviation of 5.675 hours. Which type of hypothesis test…
State if these variables would be expected to have a positive, negative, or no association. A. Number of schools and population size. o Positive Negative No association B. Income and number of health conditions. Positive o Negative No association C. Time spent meditating and stress level. Positive o Negative No association D. Number of pets and amount of money spent on printer ink. Positive Negative o No association E. Life expectancy and death rate. Positive Negative o No association
RBI Kings. As reported on MLB.com, the five players with the highest runs batted in (RBI) during the 2012 Major League Baseball season are listed in the following table. Also included are the teams for which they played, their positions, and their weights. Identify the type of data provided by the information in each column of the table. Player Team Position RBI Weight (lb) M. Cabrera Detroit 3B 139 240 J. Hamilton Texas LE 128 225 C. Headley San Diego 3B 115 220 R. Braun Milwaukee LE 112 205 E. Encamacion Toronto IB 110 230
The data show the population (in thousands) for a recent year of a sample of cities in South Carolina. 26 26 15 29 69 21 30 29 13 26 20 38 85 19 19 23 29 25 111 47 30 49 108 30 38 Send data to Excel
The female life expectancy and the male life expectancy (in years) for 30 industrial countries were recorded. The data are shown in the back-to-back stemplot below. Female Life Expectancy Male Life Expectancy 68 69 69 70 18 71 72 9 8 73 0 74 9 75 12 5 68 9 76 2 2 7 789 99 77 1 2 4 5 6 7 78 0 4 5 6 7 4 1 79 2 4 2 80 988 7 7 6 6 4 1 81 8 7 5 3 3 2 82 998 32 183 84 5 85 6816 represents 68.6 years Based on the stemplot, which of the following statements is true? (A) The median life expectancy and the range of life expectancies are both less for females than for males in these countries. (B) The median life expectancy and the range of life expectancies are both greater for females than for males in these countries. (C) The median life expectancy is the same for females and males in these countries, and the range of life expectancies is the same for females and for males in these countries. (D) The median life expectancy is less for females than for males in these countries, and the range of…
Classify each of the following data types as qualitative or quantitative. 1. Types of animals used as NFL football team mascots 2. Weight of kindergarten students 3. Height of sycamore trees 4. Dollars earned by actor 5. Colors people use to paint their houses
B. Present these given Math grades of high school students in the indicated data organization. 88 93 80 80 90 95 84 67 90 92 93 87 75 89 79 92 87 90 83 87 80 80 91 79 81 d. Stem leaf e. Box and whisker 99 1878 89 77 82 75 87 84 82 75 85 90 86 76 76 90
An advertising company is comparing published listening figures for different radio stations and podcasts in order to decide where is the best place to put their adverts. The audience figures for the last 20 quarters of radio stations A and B are in Table 1. Table 1 Audience figures in 100 000s of radio stations A and B for the last 20 quarters. Radio Station A Radio Station B 112 106 108 113 111 109 108 112 115 115 118 114 116 115 113 103 107 105 103 106 98 101 100 99 100 99 100 98 96 97 98 87 88 92 98 99 96 102 104 100
Doctors at a technology research facility randomly assigned people to use computer keyboards in two rooms. In one room a group of people typed a manuscript using standard keyboards, while in the other room a second group of people typed the same manuscript using ergonomic keyboards to see if those people could type more words per minute. The table shows the resulting data. Standard Ergonomic Words per Words per minute minute 12 43 38 35 21 35 28 69 18 58 45 52 40 36 42 37 52 38 19 47 24 46 63 58
An automobile battery manufacturer company named Everlast conducted a test which indicates the lifetime of the Everlast automobile battery is normally distributed with a population mean= 60 months and a population standard deviation = 6 months. The Everlast manufacturer company has decided to offer a free replacement battery to any purchaser whose Everlast battery does not last at least as long as the minimum lifetime specified in its guarantee. a. If an automobile battery manufactured by this company is randomly selected then what is the probability that it will last less than 46.02 months? ( answer in four decimal point like 0.1111 or 11.11%)b. What is the probability that the all possible lifetimes of automobile batteries will be between 48 months and 72 months? ( answer in four decimal points like 0.1111 or 11.11%)
Please help. Step by step.
Use the given info and answer subquestion 10.b only

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