2. Identify each of the following as examples of (1) attribute (qualitative) or (2) numerical (quantitative) variables:a. The breaking strength of a given type of stringb. The hair color of children auditioning for the musical Anniec. The number of stop signs in towns of fewer than 500 peopled. Whether or not a faucet is defectivee. The number of questions answered correctly on a standardized testf. The length of time required to answer a telephone call at a certain real estate office

A variable can be classified as qualitative if it can not take numerical values. On the other hand,…

Answered: 2. Identify each of the following as…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Consider the different contexts: a population, one sample, and a collection of all possible sample means. To distinguish between the three different contexts: (a) What measures the average distance between an observation in a sample of size n and the center of that sample? a.a b. o C.S d. aN(n) (b) What measures the average distance between an observation in a population and the center of that population? a. a b. O C. S d. aN(n) (c) What measures the average distance between a sample mean x and the center of all sample means of the same size n? a. a b. o C. S d. a (n) (d) What measures the average distance between the height of an individual in a population and the mean height of the population? a. a b. o С. S d. av(n)
For each of the following situations reported in the news, specify what variable(s) were measured on each individual and whether they are best described as categorical, ordinal, or quantitative. (Select all that apply.) (a) A Los Angeles Times survey found that 60% of the 1,515 adult Californians polled supported a state law banning smoking in bars.† a)Whether a person reads the Los Angeles Times is an ordinal variable. b)Whether a person supports the smoking ban or not is a categorical variable. c)Percentage of Californian bars affected by the ban is a quantitative variable. d)Whether a person reads the Los Angeles Times or not is a categorical variable. e)Number of bars affected by the ban is a quantitative variable. f)Whether a person supports the smoking ban is an ordinal variable. (b) According to the College Board News,† "Students using either one of two major coaching programs [for the SAT] were likely to experience an average gain of 5 to 19…
2. Consider the foot length and foot width of six female grade 4 students in Morning Star Montessori School in 2006: Length of foot (cm) Y 20.9 Width of foot (cm) X 8.5 24 9 19.6 7.9 22.6 8.8 21 8.8 21.6 9.3 For the next five items, refer to the problem above, in the previous page. In addition to the female grade 4 students, below are some of the boys measurements: Width of foot (cm) Length of foot (cm) Y 8.4 8.8 9.7 9.8 8.9 9.7 22.4 23.4 22.5 23.2 23.1 23.7 5. What is the coefficient of determination () of the width and length of food?
In order to gauge public opinion about how to handle Iran's growing nuclear program, a research group surveyed 996 American men by telephone and asked them to rate the threat Iran's nuclear program poses to the world on a scale of 1 to 10. Describe the population, sample, population parameters, and sample statistics Identify the population in the given problem. Choose the correct answer below. O A. The 996 American men surveyed by telephone O B. Half of all American men O C. All American men O D. Some of the 996 American men surveyed by telephone Identify the sample for the given problem. Choose the correct answer below. O A. Half of all American men O B. The 996 American men surveyed by telephone C. All American men O D. Some of the 996 American men surveyed by telephone Identify the population parameter in the given study. Choose the correct answer below. O A. The mean threat rating of all American men on Iran's nuclear program O B. The mean threat rating on Iran's nuclear program of…
2. Consider the foot length and foot width of six female grade 4 students in Morning Star Montessori School in 2006: Length of foot (cm) Y 20.9 Width of foot (cm) X 8.5 24 9 19.6 7.9 22.6 8.8 21 8.8 21.6 9.3 For the next five items, refer to the problem above, in the previous page. In addition to the female grade 4 students, below are some of the boys measurements: Width of foot (cm) Length of foot (cm) Y 22.4 23.4 22.5 23.2 23.1 8.4 8.8 9.7 9.8 8.9 9.7 23.7 4. What is the y-intercept (be) of the least squares regression line?
i need the answer quickly
Examine the data and identify anything appearing to be unique. Select all that apply. A. The data are presented as quantitative but are actually categorical. B. The unusually large value of 80 minutes appears to be an error in recording the data. C. Most of the data values are rounded to the nearest 5 or 10 minutes, and may be estimates of actual commute times. D. Based on the gaps in the distribution, the data appear to be from two different populations.
A beauty products brand launched a new shower gel and distributed samples to 148 prospective customers for review. 86 of them said they were satisfied with the product, 50 of whom were males and 30 customers including 5 females were unsatisfied, the rest were unsure. If the sample included 61 females. Answer the following. 1. Fill in the following table Review Gender Un-Satisfied Unsure Satisfied Male Female 2. What proportion of the customers were unsure females? 3. How many male unsatisfied customers were there 4. What proportion of women were satisfied with the product? 5. What proportion of the customers were unsure about the product?
There is a relationship between political affiliation (on a scale of 1 to 10, where 1 = very liberal and 10 = very conservative) and U.S. geographic regions, such that people living in the Northeast are more likely to consider themselves liberal than people living in the South. what is my unit of analysis?
1. How does the cost of shipping a standard-sized crate relate to the distance of the destination? Can the cost of shipping be determined using the distance of the destination? To answer these questions, a Philippine Airlines statistician used 12 freight invoices randomly drawn and summarized below. Distance Charge (in pesos) (hundred of kilometers) 1400 2000 800 1600 1620 1900 620 1440 900 1800 2100 750 14 23 9 17 10 22 5 12 6 16 25 8 (n Plot the residual scatter diagram for the data.

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