An article reported that in a particular year, there were 717 bicyclists killed on public roadways in a particular country, and that the average age of the cyclists killed was43 years. These figures were based on an analysis of the records of all traffic-related deaths of bicyclists on public roadways of that country.(a) Does the group of 717 bicycle fatalities represent a census or a sample of the bicycle fatalities for that year?O a censusO a sample(b) If the population of interest is bicycle traffic fatalities for this particular year, is the given average age of 43 years a number that describes a sample or a number thatdescribes the population?O a number that describes a sampleO a number that describes the population

A census represents to an entire population and a sample is a subset or a small group of that…

Answered: An article reported that in a…

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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6) The mean salary of 5 employees is $41800. The employee salaries have 2 modes: $33000 and $51500. If the median salary gets a $1300 raise, then... Hint: It will help to write down what salaries you know of the five and think about how you normally calculate mean and median.. a) What is the new mean? New Mean = $ b) What is the new median?. New Median = $
5. What are the values of the five-number summary for the following data set in order from least to greatest? 1077, 1063, 1112, 1123, 1044, 1041, 1087, 1045, 1097, 1001, 1064, 1101, 1018, 1073, 1114 1001, 1044, 1073, 1101, 1123 1001, 1041, 1064, 1077, 1123 1018, 1045, 1077, 1112, 1114 O 1001, 1042.5, 1073, 1106.5, 1123
Please answer all the parts in the picture below as well as the data table, thank you so much :))
The numbers of students in the sections of principles in statistics are considered as:
1. The percentage of 12- to 17-year-olds who reported talking at least once in the past year with their parents about the dangers of drug, tobacco, or alcohol is 60% nationally. A state youth council believes this proportion is higher in their state, where there has been an intense media campaign about this issue. A survey of randomly chosen students from across the state shows 1032 of 1642 students reporting they are having these conversations with their parents. Is there evidence that the percent of students using drugs, tobacco or alcohol in this state is above the national rate?
1. Sample data about the listing price of a house is collected from Surrey, Guilford area in 2022 and the data is given below. Using the data answer the following questions: N 1 2 3 4 5 Listing Price 1049900 11 1229000 1049900 12 1230000 1050000 13 1075000 14 1298999 1299000 1299000 1075000 15 16 1398000 1078800 1179000 17 18 1398000 1399000 1188000 1188000 19 1449900 1225000 20 1450000 a. What is the mean listing price of a home? b. Generate appropriate numerical summaries for the listing price of a home, the sample standard deviation, etc. 6 7 8 9 10 Listing Price N Listing Price 21 1450000 22 1450000 23 1469900 24 1475000 25 1475000 26 1480000 1499000 27 28 1499000 29 1499233 30 1499900 N C. Use these summaries to develop a 95% confidence interval to estimate the mean listing price of a house in your selected city. That is, you will be using the sampling data you collected to estimate the population parameter (listing price). Make sure to show both your calculations and a final…
A research group conducted an extensive survey of 2958 wage and salaried workers on issues ranging from relationships with their bosses to household chores. The data were gathered through hour-long telephone interviews with a nationally representative sample. In response to the question, "What does success mean to you?" 1467 responded, "Personal satisfaction from doing a good job." Let p be the population proportion of all wage and salaried workers who would respond the same way to the stated question. How large a sample is needed f we wish to be 95% confident that the sample percentage of those equating success with personal satisfaction is within 2.6% of the population percentage? (Hint: Use p≈ 0.50 as a preliminary estimate. Round your answer up to the nearest whole number.) USE SALT workers
Better light After his first attempt to determine the speedof light (described in Exercise 21), Michelson conductedan “improved” experiment. In 1897 he reported results of100 trials with a mean of 852.4 and a standard deviationof 79.0.a) What is the standard error of the mean for these data?b) Without computing it, how would you expect a 95%confidence interval for the second experiment to differfrom the confidence interval for the first? Note at least three specific reasons why they might differ, and indi-cate the ways in which these differences would change the interval.c) According to Stigler (who reports these values),the true speed of light is 299,710.5 km>sec,corresponding to a value of 710.5 for Michelson’s1897 measurements. What does this indicate aboutMichelson’s two experiments? Explain, using yourconfidence interval.
Medical researchers followed 6272 Swedish men for 30 years to see if there was any association between the amount of fish in their diet and prostate cancer. (“Fatty Fish Consumption and Risk of Prostate Cancer,” Lancet, June 2001). A summary of the data is given in the table below. Fish Consumption No Prostate Cancers Prostate Cancers Never/Seldom 110 14 Small part of diet 2420 201 Moderate part of diet 2769 209 Large part of diet 507 42 A) If a patient is randomly selected, what is the probability that he/she had prostate cancer given that fish was never or seldom a part of the diet? Round your answer to three decimal places and include the leading zero. B) If a patient is randomly selected, what is the probability that s/he ate fish as a large part of their diet given that they had prostate cancer. Round your answer to two decimal places and include the leading zero.
Data was collected for 224 randomly selected 10 minute intervals. For each ten-minute interval, the number of people entering the atrium of a large mall were recorded. The data is summarized in the table below. Number of Guests Frequency 120 – 124 23 125 – 129 32 130 – 134 97 135 – 139 56 140 – 144 16 What is the class width for this GFDT?
The human resource department at a certain company wants to conduct a survey regarding worker benefits. The department has an alphabetical list of all 2434 employees at the company and wants to conduct a systematic sample of size 30. What is K? K=?
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 a) What is the mean commute time for these 18 cities? b) What is the median commute time for these 18 cities? c) What is the mode for these 18 cities? 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.

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