Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Does lovastatin (cholesterol-lowering drug) minimize the risk of heart attack? In Texas study, researchers gave lovastatin to 2,325 people and inactive substitute to 2,081 people (average age 58). After five years, 57 of lovastatin group had suffered heart attack, compared with 97 for the inactive pill.

a) Describe the appropriate hypotheses.

b) Make a test statistic and p-value. Interpret the results at _ = .01.

c) Is normality assured?

d) Is the difference large enough to be significant?

e) What else would medical researchers need to know before the prescribing this drug widely?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M916872

Have any Question? 


Related Questions in Statistics and Probability

In a recent poll of 760 homeowners in the united states one

In a recent poll of 760 homeowners in the United States, one in five homeowners reports having a home equity loan that he or she is currently paying off. Using a confidence coefficient of 0.90, derive an interval estimat ...

1 what are the most common causes of missing data and what

1. What are the most common causes of missing data, and what difficulties do missing data cause? What can be done if data are missing? 2. Comment on the circumstances under which a researcher would consider deleting one ...

1 why do researchers care how much variability exists in a

1. Why do researchers care how much variability exists in a set of data? 2. Distinguish between descriptive and inferential statistics. 3. Conceptually, what does the variance tell us about a set of data?

Suppose that a certain college class contains 65 students

Suppose that a certain college class contains 65 students. Of these, 35 are seniors, 33 are biology majors, and 5 are neither. A student is selected at random from the class. (a) What is the  probability  that the studen ...

Listed below is a list of how long it takes for bands on

Listed below is a list of how long it takes for bands on stage to complete their first song (in seconds). 538 312 327 309 344 313 318 315 325 331 312 314 What is the mean time it takes for bands on stage to complete thei ...

Consider a sealed-bid second-price auction with two buyers

Consider a sealed-bid second-price auction with two buyers, whose private values are independent; buyer 1's private value is uniformly distributed over [0, 1], and buyer 2's private value is uniformly distributed over [0 ...

Reading journal assignment stage iifor this portion of the

Reading Journal Assignment Stage II For this portion of the journal, you will create five journal entries, each addressing the prompts given below. Each entry will be one page in length, double spaced, with 12 point font ...

Explain how you would conduct the study in given question

Explain how you would conduct the study in given question as a within-subjects design. Question:- Imagine that you were conducting an experiment to examine the effect of generous role models on children's willingness to ...

A multiple-choice test consists of 7 questions each

A multiple-choice test consists of 7 questions. Each question has answer choices of a, b, c, and d, and only one of the choices is correct. If a student randomly guesses on each question, what is the probability that she ...

1 an investigator wants to determine if a new program aimed

1. An investigator wants to determine if a new program aimed at reducing the overall number of pregnancies in a highly populated area is effective (reducing average births below 6 per household). In order to carry out th ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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