Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

problem: The small pilot study is run to compare a new drug for chronic pain to one that is presently available. Participants are arbitrarily assigned to receive either the new drug or the currently accessible drug and report improvement in pain on a 5-point ordinal scale: 1 = Pain is much worse, 2 = Pain is slightly worse, 3 = No change, 4 = Pain improved slightly, 5 = Pain much improved. Is there a noteworthy difference in self-reported improvement in pain? Use the Mann-Whitney U test with a 5% level of significance.

New Drug:            4    5    3    3    4    2
Standard Drug:    2    3    4    1    2    3

problem: An observational study is conducted to compare experiences of men and women among the ages of 50-59 years following coronary artery bypass surgery. The participants undergo the surgery and are followed until the time of death, until they are lost to follow-up or up to 30 years, whichever comes first. The given table details the experiences of participating men and women. The data beneath are years of death or years of last contact for men and women.

313_death and years table.jpg

Find out the survival functions for each and every treatment group by using the Kaplan-Meier approach.

problem: As a graduate student, you will likely be required to complete a thesis or a research project concerning an issue in which you are interested. Therefore, this problem will require you to prepare a hypothetical statistical problem (no data collection required) concerning a health-related issue of your choice. The problem must state a research problem you would wish to pursue, and you must conduct hypothesis testing in order to answer your research problem. To answer this problem, your response must clearly provide the following information:

a) The background paragraph providing sufficient information required to conduct hypothesis testing (ex: mean, standard deviation, sample size, research problem or purpose of the study, and your significance level of .05);

b) The suitable hypothesis statements accurately reflecting your research problem or the aim of your study;

c) The statistical test you would use to resolve the problem. Choose one of the given statistical tests you have learned during this course (ex: t-test, ANOVA, chi-square, Mann-Whitney U test). As well, state your rationale for the selection of this statistical test.

d) The decision rule employed to find out when you would reject the null hypothesis. This decision rule must point out the suitable critical value and degrees of freedom (if applicable). You should as well provide a rationale for your decision rule;

e) The computation of your statistical test based on the information provided in your introductory paragraph. You should show your work.

f) State whether or not you would refuse the null hypothesis and also the reason for your decision. As well, give one statement of conclusion for which you should answer your research problem (this statement is the interpretation of your outcomes).

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M9164

Have any Question? 


Related Questions in Statistics and Probability

Activity first digit phenomenona descriptive statistical

Activity: First Digit Phenomenon A Descriptive Statistical Discovery Instruction Sheet Introduction: Statisticians divide their subject into two major branches. Descriptive Statistics: Based on the concepts and methods n ...

This course is designed to provide you with the knowledge

This course is designed to provide you with the knowledge and skills in application, evaluation, analysis, and interpretation of biostatistical data used to inform public health programs, policy, and practice. View the o ...

Discuss the changes in beliefs from the end of the

Discuss the changes in beliefs from the end of the pre-modern period into the modern period, providing two (2) examples. Discuss how these changes have impacted current practice in psychology, providing two (2) examples.

In a health insurance experiment performed in a super

In a health Insurance experiment performed in a Super Specialty Hospital 4 types of insurance categories patients are expected to occur in the proportion of 9: 3: 3: 1. The observed frequencies are 891 Insured and Surgic ...

Random and independent samples of 80 recent prime time

Random and independent samples of 80 recent prime time airings from each of two major networks have been considered. The first network aired a mean of 110.7  commercials during prime time, with a standard deviation of 4. ...

An economist wants to estimate the mean per capita income

An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in Texas. He believes that the mean income is $23.8, and the standard deviation is known to be $8.9. How large of a sam ...

In a survey of 617males agesnbsp18-64 396 say they have

In a survey of 617males ages 18-64, 396 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the co ...

A consumer psychologist asked to test a claim by a swimming

A consumer psychologist asked to test a claim by a swimming school that its instructors could teach the average seven-year-old to swim across an Olympic-sized pool in less than 2 minutes. The psychologist arranged for ei ...

If the slope of a straight line is 23 and correlation

If the slope of a straight line is 2.3 and correlation coefficient is 0.777, calculate coefficient of determination.

A national survey of 40000 adults in the us in 1992 found

A national survey of 40,000 adults in the US in 1992 found that 26% of adults were current smokers. A similar survey of 37,000 adults in the US in 1966 found that 43% of adults were current smokers. Construct a 95% confi ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen