Statistics questions 2

User Generated

anggl

Mathematics

Description

The questions are structured as multiple answers, multiple choice, fill in the blank(s), true-false, or so-called hot spots, which require you to click on an area of an image to answer a question. Because grading of this assignment is automated, it is important in cases of fill-in-the-blank(s) questions that you spell your answers correctly or it will be scored incorrect. Also, when you have to generate a response to fill a blank, do not include any extra information other than what is exactly called for by the question (for example, if the answer is the number "1110", typing in "1,100" will be scored as incorrect by Blackboard because it includes an unnecessary comma; an unnecessary space("1 100") would similarly be marked incorrect. If we see instances like this we will change them to correct, but we do not always catch these issues nor do students themselves, so best to avoid them altogether!

If the question requires computation, do the calculations and then give or select the correct values using the following rule:

Keep at least 4 decimal places at intermediate steps of a calculation, and round your final answer to 2 decimal places, unless otherwise noted.

For example:

(67.3 ÷ 3.456) ÷ 2 x 15 = (19.4734) ÷ 2 x 15 = 9.7367 x 15 = 146.0505, this is the final answer so round to two decimal places to get 146.05.

final calculated value of 16.6667 would become 16.67 after rounding

14.3112 would become 14.31

26.8973 would become 26.90

4.6251 would become 4.63 (In contrast to what Howell says, always round up with a value of 5 even if it produces an odd rather than an even final number as in this example.)

Failure to follow this rule, like misspellings, could lead to automated scoring errors.

(In the course notes for Module 7, probabilities such .678934 are instead rounded to four decimal places, so the correct way to report the aforementioned probability is .6789. You do not need to add zeros to fill four decimal places, e.g., do not change .25 to .2500)


Please answer the attached questions and show your work please

Unformatted Attachment Preview

1) A survey of Ohio University students was conducted to determine if there was a particular Green that was desired by students to live on. A sample of students responses are reproduced below. Do students prefer a particular Green? Use critical value = 5.99. Use the numbers below for this question only! West Green South Green 33 67 East Green 115 What would the expected value for the West Green be? 2) A survey of Ohio University students was conducted to determine if there was a particular Green that was desired by students to live on. A sample of students responses are reproduced below. Do students prefer a particular Green? Use critical value = 5.99. Use the numbers below for this question only! West Green South Green 33 59 East Green 87 What is the calculated chi-squared value? 3) Using a critical value of 5.99, was there a significant preference for where students live based on the obtained chi-square value in Question 2? Yes No 4) A local sports bar wanted to determine whether Ohio University students prefer a particular type of food in their establishment. A sample of students responses are reproduced below. Do students prefer a particular type of bar food? Use critical value = 6.58. Use the numbers below for this question only! Nachos Pizza 45 36 Chicken Wings 28 Cheese Sticks 24 What would the expected value for Cheese Sticks be? 5) A local sports bar wanted to determine whether Ohio University students prefer a particular type of food in their establishment. A sample of students responses are reproduced below. Do students prefer a particular type of bar food? Use critical value = 6.58. Use the numbers below for this question only! Nachos Pizza 38 36 Chicken Wings 36 Cheese Sticks 43 What is the calculated chi-squared value? 6) Using a critical value of 6.58, was there a significant preference for what students eat in a sports bar based on the obtained chi-square value in Question 5? Yes No 7) In a study of binge drinking among undergraduates at Ohio University, a researcher was interested in gender differences as related to binge drinking and to drinking-related arrests. She wanted to know two things: (a) Is there a significant relationship between gender and binge drinking (as defined by 5 or more drinks at one sitting), and (b) Is there a significant relationship between gender and drinking-related arrests? A random sample of males and females were asked about their experiences with binge drinking and with drinking-related arrests. Use the numbers below for this question only! Binge Drinking? YES NO Male 296 246 Female 265 227 What would the expected value for the "male-yes" cell be? 8) In a study of binge drinking among undergraduates at Ohio University, a researcher was interested in gender differences as related to binge drinking and to drinking-related arrests. She wanted to know two things: (a) Is there a significant relationship between gender and binge drinking (as defined by 5 or more drinks at one sitting), and (b) Is there a significant relationship between gender and drinking-related arrests? A random sample of males and females were asked about their experiences with binge drinking and with drinking-related arrests. Use the numbers below for this question only! Binge Drinking? YES NO Male 264 288 Female 224 247 What would the expected value for the "female-no" cell be? 9) In a study of binge drinking among undergraduates at Ohio University, a researcher was interested in gender differences as related to binge drinking and to drinking-related arrests. She wanted to know two things: (a) Is there a significant relationship between gender and binge drinking (as defined by 5 or more drinks at one sitting), and (b) Is there a significant relationship between gender and drinking-related arrests? A random sample of males and females were asked about their experiences with binge drinking and with drinking-related arrests. Test for a relationship in the following data: Use the numbers below for this question only! Binge Drinking? YES NO Male 36 27 Female 25 46 What is the calculated chi-squared value? 10) Using a critical value of 3.84, and based on the obtained chi-square value in Question 9, is there a significant relationship between gender and binge drinking? Yes No 11) Copy of In a study of binge drinking among undergraduates at Ohio University, a researcher was interested in gender differences as related to binge drinking and to drinking-related arrests. She wanted to know two things: (a) Is there a significant relationship between gender and binge drinking (as defined by 5 or more drinks at one sitting), and (b) Is there a significant relationship between gender and drinking-related arrests? A random sample of males and females were asked about their experiences with binge drinking and with drinking-related arrests. Use the numbers below for this question only! Experience Alcohol-related Arrest? YES NO Male 244 238 Female 279 230 What would the expected value for the "male-no" cell be? 12) In a study of binge drinking among undergraduates at Ohio University, a researcher was interested in gender differences as related to binge drinking and to drinking-related arrests. She wanted to know two things: (a) Is there a significant relationship between gender and binge drinking (as defined by 5 or more drinks at one sitting), and (b) Is there a significant relationship between gender and drinking-related arrests? A random sample of males and females were asked about their experiences with binge drinking and with drinking-related arrests. Use the numbers below for this question only! Experience Alcohol-related Arrest? YES NO Male 231 207 Female 218 253 What would the expected value for the "female-yes" cell be? 13) In a study of binge drinking among undergraduates at Ohio University, a researcher was interested in gender differences as related to binge drinking and to drinking-related arrests. She wanted to know two things: (a) Is there a significant relationship between gender and binge drinking (as defined by 5 or more drinks at one sitting), and (b) Is there a significant relationship between gender and drinking-related arrests? A random sample of males and females were asked about their experiences with binge drinking and with drinking-related arrests. Test for a relationship in the following data: Use the numbers below for this question only! Experience Alcohol-related Arrest? YES Male 38 NO 23 Female 29 39 What is the calculated chi-squared value? 14) Using a critical value of 3.84, and based on the obtained chi-square value in Question 13, is there a significant relationship between gender and alcohol-related arrests? Yes No 15) Which of the following shows relationships between measurement variables? Bar graph Line graph Scatterplot Pictogram Pie chart 16) For which of the following scenarios would a line graph be most appropriate? Eye color of babies Percentage of men and women in occupational therapy positions Number of patients admitted to a hospital each year from 1990 to 2010 Number of patients on each floor of the hospital yesterday 17) Which of the following is not a true statement about bar graphs? The horizontal axis does not need to be labeled for a bar graph. Bar graphs show percentages or frequencies in various categories. Bar graphs represent categorical data. Pictograms are similar to bar graphs except they use pictures related to the topic 18) A chi-square test for independence is appropriate with 1 measurement variable 2 measurement variables 1 categorical variable 2 categorical variables 19) Which of the following types of plots provides the best visual representation of the following data (Table 9.5 in Utts) Table 9.5 Living Donor’s Relationship to Organ Transplant Recipient for All Cases in the United States in 2002 Bar graph Scatterplot Line graph Bar stool 20) According to information in your textbooks, what is one problem with this graph? The graph has too many confusing labels. The graph does not start at zero. The graph shows a distortion of a time series. The graph employs a misleading unit of measurement.
Purchase answer to see full attachment
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Explanation & Answer

Att...


Anonymous
I was stuck on this subject and a friend recommended Studypool. I'm so glad I checked it out!

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4

Related Tags