A study of adverse symptoms in users of over-the-counter, Ask an Expert

Statistics

A study of "adverse symptoms" in users of over-the-counter pain relief medications assigned subjects at random to one of two common pain relievers: acetaminophen and ibuprofen. In all, 650 subjects took acetaminophen, and 44 experienced some adverse symptom. Of the 347 subjects who took ibuprofen, 49 had an adverse symptom. We want to assess the evidence that the two pain relievers differ in the proportion of people who experience an adverse symptom.

a. Identify the populations and parameters of interest. Then state hypotheses.

b. State and verify conditions for carrying out a significance test.

c. Calculate the test statistic and the P-value.

d. What conclusion would you draw?

e. Construct and interpret a 90% confidence interval for the size of the difference.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91002515

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

The average starting salary for graduates at a university

The average starting salary for graduates at a university is $33,000 with a standard deviation of $2,000. If a histogram of the data shows that it takes on a mound shape, the empirical rule says that approximately 68% of ...

According to the center for disease control the mean total

According to the center for Disease Control, the mean total cholesterol for men between the ages of 20-29 is 180 milligrams per deciliter with a standard deviation of 36.2. A healthy total cholesterol level is less than ...

Rework problem 3 from section 43 of your text involving the

Rework problem 3 from section 4.3 of your text, involving the expected value of a given probability density function. Use the density function shown below instead of the one in your text. Value of X: ; Probability: 1 1/2 ...

The interest rate on one-year treasury bonds is 1 the rate

The interest rate on one-year treasury bonds is 1%, the rate on two-year treasury bonds is 0.9%, and the rate on three-year treasury bonds is 0.8%. Using the expectations theory, compute the expected one-year interest ra ...

A researcher selects from a participant pool of 8 males and

A researcher selects from a participant pool of 8 males and 11 females. He determines that the probability of selecting 2 female participants is p = .335. Based on this probability, what strategy did the researcher use t ...

Adult male heights x have n70 33a what percent of adult

Adult male heights X have N(70", 3.3") a.) What percent of adult males are shorter than 63"? b.) What percent of males are taller than 70"? c.) What's the 80th percentile of male heights? Show work

Why are scattered plots necessary when investigating the

Why are scattered plots necessary when investigating the relationship between quantitative variables?

According to a january 2013 survey by the pew research

According to a January 2013 survey by the Pew Research Center, the percentage of Americans who trust the government in Washington has decreased steadily since Bill Clinton left office.6 Today, approximately 30% of Americ ...

Confidence intervals ci are one of the simpler forms of

Confidence intervals (CI) are one of the simpler forms of inferential statistics. What does the CI represent? And why does our knowledge of the Central Limit Theorem (CLT) and the empirical rule let us understand why the ...

Question suppose you have applied to three graduate schools

Question: Suppose you have applied to three graduate schools: A, B, and C. The odds of getting into A are 20%, into B are 40%, and into C are 60%. What is the probability you get rejected at all three schools? Get accept ...

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

Recent Questions

Ask Statistics and Probability Expert