Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Statistics and Probability Expert

A pharmaceutical company wants to test the effectiveness of their new chronic pain drug. They give one group of 35 people with chronic pain the drug and 20 of them had their pain reduced. The company gives another group of 35 people with chronic pain a placebo and 15 of them had their pain reduced. Construct a 98% Confidence Interval for the difference of the proportion between the drug group and the placebo group. Using a significance level of .01, test the claim that the drug is effective using a hypothesis test of the difference of the proportions.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M91002494

Have any Question?


Related Questions in Statistics and Probability

Given the following values 20 m 16 07 conduct a

Given the following values: = 20, M = 16, = 0.7, conduct a one-sample z test at a .05 level of significance. What is the decision for a two-tailed test? A) to reject the null hypothesis B) to retain the null hypothesis C ...

The number of stomata tiny openings on the leaves of a

The number of stomata (tiny openings) on the leaves of a particular mutant of Arabidopsis (a common experimental plant) is known to be approximately normally distributed with mean 75 and variance 49. What is the probabil ...

If the coefficient of determination is 0738 what percentage

If the coefficient of determination is 0.738, what percentage of the data about the regression line is unexplained?

A project has an initial outlay of 2034 it has a single

A project has an initial outlay of $2,034. It has a single cash flow at the end of year 6 of $4,743. What is the internal rate of return (IRR) for the project? Round the answer to two decimal places in percentage form.

A researcher calculates a 90 confidence interval of 3397

A researcher calculates a 90% confidence interval of (3397, 3421) to estimate the population birth weight using a random sample of 84 babies born to mothers with gestational diabetes. She wants to compare this range to t ...

What are the uses and value of statistical significance

What are the uses and value of statistical significance testing and the p-value as demonstrated in the various analytical techniques (t-tests, ANOVA, chi-square, etc.). What's the fundamental reason we apply these techni ...

Only 35 of the drivers in a particular city wear seat belts

Only 35% of the drivers in a particular city wear seat belts. Suppose that 20 drivers are stopped at random what is the probability that exactly four are wearing a seatbelt? (Round your answer to 4 decimal places)

Can anyone tell me how the margin of error and the level of

Can anyone tell me how the margin of error and the level of confidence are related to one another in statistics?

A confidence interval for a population mean is to be

A confidence interval for a population mean is to be estimated. The population standard deviation is guessed to be anywhere from 14 to 24. The half-width B desired could be anywhere from 2 to 7. Tabulate the minimum samp ...

In the game of roulette a player can place a 7 bet on the

In the game of? roulette, a player can place a ?$7 bet on the number 18 and have a 1/38 probability of winning. If the metal ball lands on 18?, the player gets to keep the ?$7 paid to play the game and the player is awar ...

  • 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

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As