User Account

All Pages

homework, Basic Statistics

Assignment Help:
Problems


15. An art professor was interested in seeing what size group is best to prime the pump so to speak to encourage strangers to gather together in front of various exhibits at her art show, so she set up an experiment. In a municipal building off campus, she asked a group of two students to stand next to each other and stare intently at a wall decoration while simultaneously she asked a group of five students to do the same at the other end of the floor. For the next 30 minutes she observed passersby to see if they too looked at the decorations for more than five seconds or made comments about the artwork to members of either group.

Here is what she found: She observed 9 people make comments or look at the decorations for more than five seconds with respect to group of two (G2). Down the hallway, she observed 26 people look at the decorations or make comments to the group of five (G5). However, she found that 34 people just passed by G5 without noticing the decoration or making a comment. A smaller number (31) just walked past G2. Because G5 had more passers than participants, she concluded that placing two of her students in front of art displays would encourage strangers to do the same. Was this a good decision? Please support your answer with an appropriate test.


16. A professor is interested in knowing the correlation, if any, of students’ scores on the first exams given in her two classes.



Class 1 Class 2
92 86
90 87
89 85
82 90
88 79
92 90
100 92
91 84

Is there a significant correlation? Explain its statistical significance, if any.




17. With respect to the situation in question 16, what other test could the professor use that would yield valid results by looking for differences. What would be the statistical result of the test?

19. A professor was interested in determining if his students made significant improvements in their test scores?


Student Test 1 Test 2
Beth 86 92
Spud 87 90
Latinqua 85 89
Bubba 90 82
Spanky 79 88
Tabitha 90 92
Lisa 92 100
Jonathan 84 91




20. A professor teaches two different subjects (history and sociology) in an ethnically diverse college. She wants to know how much interest students have in prominent political figures. She reasons that knowing this will help her plan for future lectures.

She asked students to rate each person listed with a Lickert scale (a continuum with five being high and 1 being of low interest). Upon looking at the data results, she concluded that there is no need to emphasize any political figure more than the others. Indeed, she reckoned, students in each subject area rated the figures similarly, so she can pace her lessons just as she has in the past.

History students’ scores:

John Maynard Keynes 3.6
Jesus 4.1
Martin Luther King Jr. 4.0
Karl Marx 2.5
Patricia Ireland 2.6
Abraham Lincoln 4.5

Sociology students’ scores:

John Maynard Keynes 3.7
Jesus 4.2
Martin Luther King Jr. 3.9
Karl Marx 4.1
Patricia Ireland 4.0
Abraham Lincoln 3.8

Is her conclusion solid? Please provide a statistical assessment using an appropriate test to evaluate her decision.

Related Discussions:- homework

Marketing research field surveys, In marketing research field surveys ar...

In marketing research field surveys are commonly used to collect primary data from the respondents. 1. Through Personal Interviews: The investigator follows a rigid proced

Degree of tastiness, A researcher is interested in comparing tastiness of d...

A researcher is interested in comparing tastiness of different parts of cheese in grilled cheese sandwiches.  The researcher expects that Cheddar cheese grilled sandwiches are rate

Education , what are the aims of education

what are the aims of education

Describe time cost of working alters of budget constraint, Suppose that an ...

Suppose that an individual has unearned income of $V and can choose how many hours she works per week at a wage of $w per hour.  Assume that she has a total of 110 hours of time to

How would you go about choosing a random sample, Q. Suppose a study is bein...

Q. Suppose a study is being done and the population is the American public. How would you go about choosing a random sample population to phone for a survey? Solution: One w

Hypothesis the basic short-run and long-run, In reguards to the airlines in...

In reguards to the airlines indusry, provide a minimum of 300 words for each statement. plus atleast 3 academic resources. 1. hypothesis the basic short-run and long-run behavio

Qualitative features of financial, Conceptual Structure has also resolved s...

Conceptual Structure has also resolved several issues which were uncertain by sales expectations for some time. Activities and dealings that can't be worked by designed financial s

Manufacturing overhead referred to as factory overhead, Manufacturing overh...

Manufacturing overhead referred to as factory burden, factory overhead, and manufacturing support costs refers to indirect factory related costs which are incurred when a product i

Variance analysis , Terry Co. manufactures a commercial solvent that is use...

Terry Co. manufactures a commercial solvent that is used for industrial maintenance. This solvent is sold by the drum and generally has a stable selling price. Due to a decrease in

Cost accounting, What is the journal entry for starting and completing 1912...

What is the journal entry for starting and completing 1912 puzzles (in units)

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd