Reference no: EM13927009
1. A researcher plans a study in which a crucial step is offering participants a food reward. It is important that the three food rewards be equal in appeal. Thus, a prestudy was designed in which participants were asked which of the rewards they preferred. Of the 60 participants, 16 preferred cupcakes, 26 preferred candy bars, and 18 favored dried apricots. Do these scores suggest that the different foods are differentially preferred by people in general? (Use the .05 significance level.)
a. Use the five steps of hypothesis testing.
b. Sketch the distribution involved.
c. Explain your findings.
2. A high school principal wanted to know if the racial makeup of her teachers mirrored that of the student body. The student body broke down into 47% White, 28% Latino, 15% African American, and 10% other. Of the 65 teachers, 42 were White, 4 were Latino, 15 were African American, and 4 were Other. Do these results suggest that the racial makeup of the faculty members is different from that of the students? (Use the .05 significance level.)
Use the five steps of hypothesis testing and explain your findings.
3.Please make up and discuss research examples corresponding to the various techniques introduced throughout this course. Describe a plausible study for each of the following statistical procedures, indicating how it would apply and what results you would predict. Also include information about the number of participants you would assess and how you would go about estimating effect size and statistical power (when relevant).
a. correlation
b. multiple regression
c. t test for independent means
d. t test for dependent means
e. ANOVA
f. chi square for goodness of fit
g. chi-square test for independence
How the mentor determines that a learner is underperforming
: Explore how the mentor determines that a learner is ‘underperforming'. Appraise the potential difficulties associated with mentoring the underperforming learner.
|
Compute net benefit to the firm of using handling procedure
: determine the net (pretax) benefit to the firm of using this special handling procedure for a $1 million check received on the following days: Monday and Friday.
|
Audience context and email
: Being able to send appropriate, professional emails is a vital skill in today's workplace. When considering audience and context, determine why it is so important to know to whom you are writing and for what specific purpose you are sending the email..
|
Explain the effect of technology.
: Analyze the influence of global economic interdependence and the effect of trade practices and agreements.
|
Five steps of hypothesis testing
: Do these results suggest that the racial makeup of the faculty members is different from that of the students? (Use the .05 significance level.) Use the five steps of hypothesis testing and explain your findings.
|
Why do you feel these purchases are a necessity
: Consumer behavior can be defined as products and services that consumers select, purchase, use, and dispose of to satisfy personal needs and wants. As a consumer, think about a product and a service that you purchase. Why do you feel these purch..
|
Solve the initial value problem
: The population p(t) of the South American Agouti satisfies the population law dp/dt = 0. 05p - 450, where the factor 0.05 reflects the birth rate and the -450 is a dt constant harvest rate due to natural predators such as the jaguar and ocelot. Fi..
|
Choose the correct verb to fit the context of the sentence
: Choose the correct verb to fit the context of the sentence. 1. Though no vote ________ taken, each delegate and alternate ________ there. a. was/was b. was/were
|
Necessary skill for any manager or leader
: Conflict resolution is a necessary skill for any manager or leader. In this assignment, you will examine the difference between conflict and competition. You will also explore ways of determining when conflict resolution is necessary and explain w..
|