The average time that Italy commute to work is 23.15 minutes (Best 4 Tourist Places, June 15, 2020). The average commute times in minutes for 18 cities are given in Table 3.1.Table 3.1CityTime (minutes)Rome24.9Milan26.8Naples26.2Turin28.1Palermo31.7Genoa25.8Bologna23.3Florence32.1Bari28.5Catania24.4Verona29.3Venice24.8Messina38.1Padua28.3Trieste28.4Taranto24.6Prato20.1Modena23.4 d) What is the variance and standard deviation of commute times for these 18 cities? e) Find the z – score value of commute time for these 18 cities. f) Find 28th and 77th Percentile of commute times for these 18 cities.

Given, μ = 23.15n = 18 And table for the data about 18 cities of Italy. d. Find varinace and…

Answered: Italy commute to work is 23.15 m

Math

Statistics

Italy commute to work is 23.15 m

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

See similar textbooks

Related questions

Q: Santa Fe is a barangay, in the city of Woodberry, in the province of Quezon. Its population as…

A: The relative frequency% of a grouped distribution is defined by Relative frequency% = (Frequency…

Q: You may need to use the appropriate appendix table or technology to answer this question. On its…

A: (a) State the hypotheses. (b) Obtain the value of the test statistic. Use EXCEL Procedure to…

Q: The human resource manager at a car dealership wants to know if the ages of its employees are…

A: a) The chi-square test of independence is used to test whether there is any significant relationship…

Q: The following table presents data on the weight of 40 students Berat Badan/Weight (kg) Frekuensi /…

Q: A report stated that based on observing a large number of vehicle occupants, the estimated…

Q: What proportion of the total number of ratings rec Customer Satisfaction Survey Monthly Regional…

A: Solution: The given table of data is

Q: The human resource manager at a car dealership wants to know if the ages of its employees are…

A: The chi square is used to examine whether there is any association or relationship exist between the…

Q: 2. Using the measure of dispersion, describe the population of the world's top ten (10) crowded…

A: The data set has been given as: Population 37393128 30290936 27058480 22043028…

Q: A survey among the workers in a large manufacturing company was taken, in order to find out from…

A: A chi-square test of independence can be used to test whether two categorical variables are…

Q: 3.7 The article "Housework around the World" (USA Today, September 15, 2009) included the percentage…

A: (a) Enter the data into the excel sheet as follows: Select Insert> charts>All charts…

Q: A nursing school professor is interested in determining how her college students compare to the…

A: Given Information : A nursing school professor is interested in determining how her college…

Q: the following table are chi-square data. Calculate and get decision Autsim Yes…

A: Given: Contingency table on vaccinated and non-vaccinated data for presence or absence of Autsim.…

Q: Average cheques received per day for KH Connect and WebLink by municipality, 2017 & 2018 Average…

Q: 35. By using a suitable interpolation formula, estimate the price for the year 1997 using the…

Q: 3. The registrar wants to know if the average encoding period of time in the school automate is 30…

A: We have given that the two statements about to the null and alternative hypotheses.

Q: The following table presents the annual person-hours of time lost due to traffic congestion for a…

A: Hi! Thanks for posting the question. Since there are more than three sub-part questions, we will…

Q: You may need to use the appropriate appendix table or technology to answer this question. On its…

A: a) Consider that μ defines the population mean rate per 5 CCF of residential water charged by U.S.…

Q: The price per share of stock for a sample of 25 companies was recorded at the beginning of the first…

A: For a sample of 25 companies, price per share of stock is recorded at the beginning of the first…

Q: The Federal Bureau of Investigation (FBI), as part of its internal security mission, serves as a…

A: Dataset City Name of the city Pop The population of city in 1000's of people Homicides Number…

Q: City planners believe that larger cities are populated by older residents. To investigate the…

A: Enter the given data into the excel as follows:

Q: Most people think London, England is one of the rainiest cities in the world. However, it receives…

A: Average = (x1+ X2+ X3 + -------+ xn)/n

Q: The human resource manager at a car dealership wants to know if the ages of its employees are…

A: Given information: Age Sales Accounts Marketing Repair Sum 20 to 29 8 10 27 43 88 30 to 39…

Q: The table below shows the number of state-registered automatic weapons and the murder rate for…

A: Given data: The expression for the murdered for the 100,000 residents in terms of thousands of…

Q: The data below presents repre data from the National Center for Health Statistics in the US for the…

Q: The following data are derived from the Monthly Vital Statistics Report (October 1999) issued by the…

A: Total probability: Let A1,...,Ak be mutually exclusive and exhaustive events, then the unconditional…

Q: Alison is studying to be a nutritionist. She examines a SRS of 21 adults to determine how many…

A: The question is based on a hypo. testing for a popl. mean. Since, popl. std. deviation is given we…

Q: Consider the corresponding contingency table in a sample of patients from a hospital. There is the…

A: Percentage is a number expressed as a fraction of 100. The symbol % is used to denote percentage.…

Q: Listed below are the measured radiation absorption rates (in W/kg) corresponding to 11 cell phones.…

A: Given: The number of observations, n=11 Observations 1.27 1.11 1.29 0.62 0.57 1.35…

Q: The Federal Bureau of Investigation (FBI), as part of its internal security mission, serves as a…

A: Given information: Model:logμi=β0+β1·Policei+β2·MedHomei+β3·IMayori+logPopi

Q: For the nations outside of Europe that are in the OECD, the table shows UN data from 2007 on the…

A: The given data set is: X (Par%) Y (Activity) x2 y2 xy 34.4 85 1183.36 7225…

Q: The human resource manager at a car dealership wants to know if the ages of its employees are…

A: Random Variable present in the table

Q: Agreed to participate Did not agree to Participate Total Contacted 20 15 35 African American 12 15…

A: a.The percentage of women overall were as follows: Total contacted Percentage African…

Q: Find the number of math students at a college taking at least one of the languages: French, German,…

Q: Two thousand frequent business travelers were asked which Midwestern city they prefer: Indianapolis,…

A: Given Information: Total business Travelers = 2000 Travelers who like Indianopolis best = 100…

Q: The human resource manager at a car dealership wants to know if the ages of its employees are…

A: Chi square χ2 association test is useful to detect the significant association (or) linear…

Q: A researcher from the ministry of education wants to find out if there is an academic difference in…

A: Introduction: If a study involves total n items, out of which n (A) are favorable to an event A,…

Q: Johnson Filtration, Inc. provides maintenance service for water-filtration systems throughout…

A: From the given information, Time Months x2 x3 3 2 1 1 2.9 6 0 1 4.8 8 1 0 1.7 3 0 1 3…

Q: The human resource manager at a car dealership wants to know if the ages of its employees are…

A: Col 1 Col 2 Col 3 Col 4 Total 20-29 Observed 8 10 27 43 88 Expected 17.74 20.44 26.20…

Q: 2. Using the measures of dispersion, describe the population of the world's top ten (10) crowded…

A: Measures of dispersion indicate how far the data values lie away from the mean. The three most…

Q: insurance in the 50 states and Washington DC for the year 2002.the percent of people not covered by…

Q: Consider the following data for 120 scholars of Fountain International School in San Juan City. How…

Q: The price per share of stock for a sample of 25 companies was recorded at the beginning of the first…

A: Given : The price per share of stock for a sample of 25 companies recorded at the beginning of the…

Q: City Population City (in millions) Median age Chicago, IL 2.833 31.5 Dallas, TX 1.233 30.5 Houston,…

Q: The human resource manager at a car dealership wants to know if the ages of its employees are…

A: Given: Sales Accounts Marketing Repairs Total 20-29 8 10 27 43 88 30-39 29 26 38 22 *…

Q: The table to the right shows data found at a government census website, under a "Did You Know"…

A: Given a table shows data found at a government census website, under a "Did You Know" panel. We…

Q: Given the following list of data, what is the five-number summary? 110, 111, 140, 190, 199, 204,…

A: The data is in the ascending order. The minimum value is 110, and maximum value is 320. The position…

Q: The human resource manager at a car dealership wants to know if the ages of its employees are…

A: Given information: Sales Accounts Marketing Repairs Total 20 to 29 8 17.74 10 *** 27…

Q: The human resource manager at a car dealership wants to know if the ages of its employees are…

A: *Answer:

Q: The weights (in pounds) of 30 preschool children are listed below. Find the five-number summary. 25…

A: Calculate Five number summary from the following…

Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

The average time that Italy commute to work is 23.15 minutes (Best 4 Tourist Places, June 15, 2020). The average commute times in minutes for 18 cities are given in Table 3.1.

Table 3.1

City	Time (minutes)
Rome	24.9
Milan	26.8
Naples	26.2
Turin	28.1
Palermo	31.7
Genoa	25.8
Bologna	23.3
Florence	32.1
Bari	28.5
Catania	24.4
Verona	29.3
Venice	24.8
Messina	38.1
Padua	28.3
Trieste	28.4
Taranto	24.6
Prato	20.1
Modena	23.4

d) What is the variance and standard deviation of commute times for these 18 cities?
e) Find the z – score value of commute time for these 18 cities.
f) Find 28^th and 77^th Percentile of commute times for these 18 cities.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step by step

Solved in 5 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

A cell phone company offers 6 different voice packages and 8 different data packages. Of those, 3 packages include both voice and data. How many ways are there to choose either voice or data, but not both?
A music professor offers his 40 students the option of coming to an additional rehearsal session theweek before their juries (musical final exams.) In order to decide whether these extra sessions actuallyhelp students, he keeps track of who attends them and compares their jury scores to those of students who did not schedule extra sessions. In this study, a difference was found between the scores of students who scheduled the extra sessions and those of students who didn't attend(higher average for students with extra sessions) A) Yes, becuase the study relied on a common final exam fro everyone B)No, because the students chose whether they attended the review session or not C) Yes becuase the study included both students who attned the review session and those who did not D)Yes, becuase the number of subjects in the study was large E)No, becuase the students in the study were not blinded
The television show CSI: Shoboygan has been successful for many years. That show recently had a share of 19, which means, that among the TV sets in use, 19% were tuned to CSI: Shoboygan. An advertiser wants to verify that 19% share value by conducting its own survey, and a pilot survey begins with 12 households have TV sets in use at the time of a CSI: Shoboygan broadcast.
The Institute of Education Sciences measures the high school dropout rate as the percentageof 16-through 24-year-olds who are not enrolled in school and have not earned a high schoolcredential. Last year, the high school dropout rate was 8.1%. A polling company recently took asurvey of 1,000 people between the ages of 16 and 24 and found that 6.5% of them are highschool dropouts. The polling company would like to determine whether the dropout rate hasdecreased at a 5% significance level
Among college students, the proportion p who say they’re interested in their congressional district’s election results has traditionally been 65%. After a series of debates on campuses, a political scientist claims that the proportion of college students who say they’re interested in their district’s election results is more than 65%. A poll is commissioned, and 172 out of a random sample of 255 college students say they’re interested in their district’s election results. Is there enough evidence to support the political scientist's claim at the 0.05 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. a. State the null hypothesis H0 and the alternative hypothesis H1. b.Find the value of the test statistic c. Find the p-value d. Is there enough evidence to support the political scientists claim that the proportion of college students who say they're interested in their district's election…
31% of American adults surveyed stated that giving up their phone for a day would be more difficult that giving up their significant other. In 2012, the United States population over the the age 18 was approximately 240,210,000. According to recent research from the pew foundation, 91% of all Americans adults have cell phones of some type. Use the statistics given to determine the approximate number of American adults who would find giving up their phone more difficult than giving up their partner. (Round to the nearest whole number as needed)
Among college students, the proportion p who say they’re interested in their congressional district’s election results has traditionally been 75%. After a series of debates on campuses, a political scientist claims that the proportion of college students who say they’re interested in their district’s election results is more than 75%. A poll is commissioned, and 207 out of a random sample of 255 college students say they’re interested in their district’s election results. Is there enough evidence to support the political scientist's claim at the 0.05 level of significance?Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. A. State the null hypothesis H0 and the alternative hypothesis H1 B. Would (Z) (t) (Chi-square) or (F) be the best statistic to use? C. Find the value of the test statistic. (Round to three or more decimal places.) D. Find the critical value. (Round to three or more decimal places.) E. Is…
Among college students, the proportion p who say they’re interested in their congressional district’s election results has traditionally been 65% . After a series of debates on campuses, a political scientist claims that the proportion of college students who say they’re interested in their district’s election results is more than 65% . A poll is commissioned, and 194 out of a random sample of 275 college students say they’re interested in their district’s election results. Is there enough evidence to support the political scientist's claim at the 0.10 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis H0 and the alternative hypothesis H1 . H0: H1: (b) Determine the type of test statistic to use. ▼(Choose one) (c) Find the value of the test statistic. (Round…