In 2006 the GSS had a special topic that investigated disabilities. They asked respondents if they had difficulty fully participating in school, housework or other daily activities and 265 out of 2,749 said “yes”. What is the point estimate of the population proportion of Americans tha

Violent crimes include​ rape, robbery,​ assault, and homicide. The following is a summary of the​ violent-crime rate​ (violent crimes per​ 100,000 population) for all states of a country in a certain year. Complete parts​ (a) through​ (d).   Q1=273.8​, Q2=388.5​, Q3=529.1   ​(a) Provide an interpretation of these results. Choose the correct answer below.   A. ​25% of the states have a​ violent-crime rate that is 273.8 crimes per​ 100,000 population or less.​ 50% of the states have a​ violent-crime rate that is 388.5 crimes per​ 100,000 population or less.​ 75% of the states have a​ violent-crime rate that is 529.1 crimes per​ 100,000 population or less.   B. ​25% of the states have a​ violent-crime rate that is 273.8 crimes per​ 100,000 population or more.​ 50% of the states have a​ violent-crime rate that is 388.5 crimes per​ 100,000 population or more.​ 75% of the states have a​ violent-crime rate that is 529.1 crimes per​ 100,000 population or more.   C. ​75% of the…

A study analyzed the sustainability behaviors of CPA corporations. The level of support for corporate sustainability​ (measured on a quantitative scale ranging from 0 to 160​ points) was obtained for each in a sample of 984 senior managers at CPA firms. The CEO of a CPA firm claims that the true mean level of support for sustainability is 66. Complete parts a through e.     What is a Type II error in this​ problem?     A. A Type II error would be to conclude that the true mean level of support for sustainability is 66 ​when, in​ fact, the mean is not equal to 66.   B. A Type II error would be to conclude that the sample mean level of support for sustainability is less than 66 ​when, in​ fact, the sample mean is greater than 66.   C. A Type II error would be to conclude that the true mean level of support for sustainability is not 66 ​when, in​ fact, the mean is equal to 66.   D. A Type II error would be to conclude that the sample mean level of support for…

The Bureau of Labor Statistics reports that the official unemployment rate for Black people was 10.4% and 4.7% for White people in February 2015. Select all correct answers for this question. O The samples of white and black people are independent. The explanatory variable is the unemployment rate. The response variable is the unemployment rate. The response variable is race.

). You are interested in investigating if there a difference in mean cholesterol between the four diet groups. What kind of sample and outcome is this?

A congressperson wants to come up with a single value to describe the prices of homes in their district. However, their district consists of a few homes that are extremely expensive compared to the others. Which descriptive statistic should they use? a. Range b. Mode c. Median d. Mean

This question will be answered in four parts. Use the following sample data of biology test scores to answer all four parts: 51; 58; 60; 48; 95; 44; 75; 71; 64; 99; 74; 48; 62; 73; 51; 78; 65; 53 Part A) Calculate the mean for the data above: Round your answer to 2 decimal places. Need only handwritten solution only (not typed one).

In a city with three high schools, all the ninth graders took a Standardized Test, with these results: Number of ninth graders High School Mean score on test Glenwood Central City Lincoln High 81 92 72 273 333 159 The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was 81.7. Of course, that is incorrect. What is the mean score for all ninth graders in the city? Round to one decimal place. mean of all ninth grader's scores =

Summary: This study aimed to determine whether exposure to Artificial Light At Night (ALAN) while sleeping is associated with the prevalence and risk of obesity, as previous research has shown a link between short sleep and obesity. The study involved analyzing data from 43,722 women aged 35 to 74 years in the US who had no history of cancer or cardiovascular disease and were not shift workers, daytime sleepers, or pregnant. The women reported their ALAN exposure at enrollment, and the data were analyzed from 2017 to 2018. ALAN exposure was categorized as 'No ALAN Exposure', and 'Any ALAN Exposure' (small nightlight, light outside the room, and light or television in the room). The presence of obesity was determined based on the measurement of general obesity, defined as having a body mass index (BMI) (calculated as weight in kilograms divided by height in meters squared) of 30.0 or higher. Research Question: Is artificial light at night while sleeping associated with obesity? Results:…

Determine whether the underlined number is a statistic or a parameter. in a study of all 4622 professors at a college, it is found that 40% own a television.