There is significant evidence

Assignment Help Basic Statistics
Reference no: EM13154892

1.A study is designed to investigate whether there is a difference in response to various treatments in patients with rheumatoid arthritis. The outcome is patient's self-reported effect of treatment. The data are shown below. Is there a significant difference in effect of treatment? Run the test at a 5% level of significance.
Symptoms
Worsened
No Effect
Symptoms Improved
Total
Treatment 1
22
14
14
50
Treatment 2
14
15
21
50
Critical value:
Computed statistic:
Based on comparing the computed statistics to the critical value which of the following is (are) true?
A. There is significant evidence, alpha =0.05, to show that there is a difference in the proportions of patients who show improvement between treatments 1 and 2
B. There is not a significance evidence, alpha=0.05, to show that there is a difference in the proportions of patients who show improvement between treatments 1 and 2
C. There is significant evidence, alpha=0.05 to show there is no difference in the proportions of patients who show improvement between treatments 1 and 2
D. A and c 

Reference no: EM13154892

Questions Cloud

Prepare the journal entry : Jurassic Company owns equipment that cost $1,867,500 and has accumulated depreciation of $788,500. The expected future net cash flows from the use of the asset are expected to be $1,037,500. The fair value of the equipment is $830,000.
A manufacturer of computers claims : A manufacturer of computers claims its batteries last an average of 3.5 hours before needing recharging. For a sample of 10 batteries, the mean life was 3 hours and the standard deviation
Test whether there are any significant differences : Use these data to test whether there are any significant differences among the three age groups. Use α = .05. SSbetween= ? T2/n - G2/N = 152/3 + 122/3 + 32/3 - 302/9
Three primary causes of cash flow problems : 1. What are the three primary causes of cash flow problems faced by a small business? Explain cash flow  management using the cash-to-cash cycle.  What are the three sources from which cash can be obtained for a business?
There is significant evidence : There is significant evidence, alpha =0.05, to show that there is a difference in the proportions of patients who show improvement between treatments 1 and 2
Determine the cost of head lamps : Determine the cost of head lamps that would appear in each of the following accounts at September 30, 2011: Raw Materials, Work in Process, Finished Goods, Cost of Goods Sold, and Selling Expenses.
Determining liability for outstanding premiums : In 2008, the company sold 675,000 boxes of Frosted Flakes and customers redeemed 330,000 box tops receiving 110,000 bowls. If the bowls cost Milner Company $2.50 each, how much liability for outstanding premiums should be recorded at the end of 20..
How many liters of o2 are needed to react completely : How many liters of O2 are needed to react completely with 45.0L of H2S at STP? 2H2S(g) + 3O2(g) -> 2SO2(g) +2H20(g)
Angioplasty is a medical procedure : Angioplasty is a medical procedure in which an obstructed blood vessel is widened. In some cases, a wire mesh tube, called a stent, is placed in the vessel to help it remain open.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Find how many expected to weigh between range

Standard deviation of 30 lb. Find the percentage of such weights between 190 lbs and 225 lbs. among 400 men aged 18 to 74, how many are expected to weigh between 190 lbs and 225 lb.

  Steps for simulation using crystal ball

Crystal Ball requires the following steps:

  Determining mean amount spent on insurance

Assume then money spent is uniformly distributed between these amounts. Determine the mean amount spent on insurance?

  Normality assumption for number of unpopped popcorn kernels

Biting an unpopped kernel of popcorn hurts! As an experiment, a self-confessed connoisseur of cheap popcorn carefully counted 773 kernels and put them in a popper. After popping, the unpopped kernels were counted. There were 86.

  What proportion of cans contain less than twelve oz

The fill volume of cans produced by a certain machine is normally distributed with mean 12 oz and standard deviation .03 oz. [4] a. What proportion of cans contain less than 12 oz?

  Estimate the average time spent on computer terminals

Sample of 81 business students over a one-week period. Assume the population standard deviation is 1.8 hours. with a ,95 probability, the margin of error is approximately.

  Desired failure rate-reliability analysis-confidence levels

A "one-shot" device can be used only once; after use, the device (e.g. a nuclear weapon, space shuttle, automobile air bag) either is destroyed or must be rebuilt.

  Information about general statistics question

Based off the three requirements that must be met before an analysis of variance test (ANOVA) can be used: Samples must be randomly selected from the populations to be evaluated.

  Effect of question content and wording for response strategy

How do question content and wording, response strategy, and preliminary analysis planning affect question construction?

  What to conclude when the specification has not been met

The specification that true average penetration be at most 50 mils. They will be used unless it can be demonstrated conclusively that the specification has not been met. What would you conclude?

  Determine probability of x occurrences in three time period

Consider a Poisson distribution with a mean of two occurrences per time period.

  Find the test statistic value for t

At a = 0.05, what is the test value?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd