Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

A survey asked 1963 respondents whether they favored or opposed a gun law requiring people to have a permit in order to purchase a gun.

image text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribed
A survey asked 1963 respondents whether they favored or opposed a gun law requiring people to have a permit in order to purchase a gun. The responses, categorized by gender, are given in the table below. Sex Gun Law Male Female | Total Favor 610 958 1,568 Oppose 238 157 395 Total 848 1,115 1,963 Given that a respondent favors the gun law, what is the probability that they are female? Select one: O A. 0.49 O B. 0.88 O C. 0.61 O D. 0.86 O E. 0.45A survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct a 95% confidence interval for the proportion of all voters in the state who favor approval. Select one: O A. (0.423, 0.520) O B. (0.438, 0.505) O C. (0.444, 0.500) O D. (0.431, 0.512) O E. (0.469, 0.475)The regression equation relating dexterity scores (x) and productivity scores (y) for the employees of a company is y= 5.50 + 1.91x Forty pairs of data were used to obtain the equation. The same data yield r=0.986 and y-bar=56.3. What is the best predicted productivity score for a person whose dexterity score is 20? Select one: O A. 43.7 O B. 56.30 O C. 58.20 O D. 38.20 O E. 111.91Determine the quartile, percentile or interquartile range as specified. The test scores of 19 students are listed below. Find the interquartile range. 91 46 86 70 61 63 97 56 90 77 82 83 52 88 74 43 92 94 67 Select one: O A. 25.5 O B. 27 O C. 29.5 O D. 28.5 O E. 29A survey was conducted to determine how people rated the quality of programming available on television. Respondents were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and- leaf display of the data is shown below. Stem Leaves 3 126 4 03478999 5 0112345 6 125 6 6 17 3 Identify the maximum quality rating. Select one: O A. 3 O B. 49 O C. 100 O D. 93The heights (in inches) of 30 adult males are listed below. A frequency distribution show the frequency and relative frequency using five classes. 70 72 71 70 69 73 69 68 70 71 67 71 70 74 69 68 71 71 71 72 69 71 68 67 73 74 70 71 69 68 Height (in inches) Frequency Relative Frequency 67.0-68.4 6 0.20 68.5-69.9 5 0.167 70.0-71.4 13 0.433 71.5-72.9 2 0.067 73.0-74.4 4 0.133 What proportion of the 30 adult males had heights less than 70 inches? Select one: O A. 16.7% O B. 0.367 O C. 36.7 O D. 0.167Select the most appropriate answer. The most common type of convenience sample is Select one: on O A. a systematic sample. O B. a simple random sample. O C. a cluster sample. O D. a stratified sample. O E. a volunteer sample.Find the mean and standard deviation of the sampling distribution of the proportion. Based on past experience, a bank believes that 8% of the people who receive loans will not make payments on time. The bank has recently approved 600 loans. Describe the sampling distribution model of the proportion of clients in this group who may not make timely payments. Select one: O A. mean = 92%; standard deviation = 0.3% O B. mean = 8%; standard deviation = 0.3% O C. mean = 92%; standard deviation = 1.1% O D. There is not enough information to describe the distribution. O E. mean = 8%; standard deviation = 1.1%Find the indicated probability for the normally distributed variable. The volumes of soda in quart soda bottles are normally distributed with a mean of 32.3 oz and a standard deviation of 1.2 oz. What is the probability that the volume of soda in a randomly selected bottle will be less than 32 oz? Select one: O A. 0.5987 O B. 0.0987 O C. 0.8026 O D. 0.4013 O E. 0.3821Provide an appropriate response. In monitoring lead in the air after an explosion at a battery factory, it is found that the amounts of lead (in ug/m3) over a 6 day period had a standard error of 1.91. Find the margin of error that corresponds to a 95% confidence interval. Select one: O A. 1.91 O B. 5.65 O C. none of these O D. 3.74 O E. 95 e Next page

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Elements Of Chemical Reaction Engineering

Authors: H. Fogler

6th Edition

9780135486221

Students also viewed these Mathematics questions