Here is a table showing fictitious trial results of a new face cream. cream placebo skin...
Here is a table showing fictitious trial results of a new face cream.
| cream | placebo | |
| skin improved | 800 | 600 |
| No improvement | 400 | 200 |
a) The sample size (total number of people in the study) is:
b) The estimated probability that someone's skin improved (regardless of which skin cream was used) is:
c) The experimental probability that someone's skin improved, given that they used the new cream, is:
d) The experimental probability that someone's skin improved, given that they used the placebo, is:
e) The experimental probability that someone used the new cream, given their skin improved is:
f) The experimental probability that someone used the new cream, given their skin did not improve is:
Homework Answers
(a) Sample size = 800 + 400 + 600 + 200 = 2000
(b) Probability = 1400/2000 = 0.7
(c) Probability = 800/1200 = 0.67
(d) Probability = 600/800 = 0.75
(e) Probability = 800/1400 = 0.57
(f) Probability = 400/1200 = 0.33
Please give me a thumbs-up if this helps you out. Thank you!
Add Answer to:
Here is a table showing fictitious trial results of a new face
cream.
cream
placebo
skin...
A new cream that advertises that it can reduce wrinkles and improve skin was subject to...
A new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 70 women over the age of 50 used the new cream for 6 months. Of those 70 women, 35 of them reported skin improvement(as judged by a dermatologist). Is this evidence that the cream will improve the skin of more than 60% of women over the age of 50? Test using ?=0.01. (a) Test statistic: ?= (b) Critical...
A new cream that advertises that it can reduce wrinkles and improve skin was subject to...
A new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 55 women over the age of 50 used the new cream for 6 months. Of those 55 women, 37 of them reported skin improvement(as judged by a dermatologist). Is this evidence that the cream will improve the skin of more than 40% of women over the age of 50? Test using α=0.01. (a) Test statistic: z= (b) Critical...
(6 points) A new cream that advertises that it can reduce wrinkles and improve skin was...
(6 points) A new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 50 women over the age of 50 used the new cream for 6 months. Of those 50 women, 31 of them reported skin improvement(as judged by a dermatologist). Is this evidence that the cream will improve the skin of more than 60% of women over the age of 50? Test using a = 0.01. (a) Test...
(6 points) A new cream that advertises that it can reduce wrinkles and improve skin was...
(6 points) A new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 50 women over the age of 50 used the new cream for 6 months. Of those 50 women, 31 of them reported skin improvement(as judged by a dermatologist). Is this evidence that the cream will improve the skin of more than 60% of women over the age of 50? Test using a = 0.01 (a) Test...
(6 pts) A new cream that advertises that it can reduce wrinkles and improve skin was...
(6 pts) A new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 51 women over the age of 50 used the new cream for 6 months. Of those 51 women, 34 of them reported skin improvement(as judged by a dermatologist). Is this evidence that the cream will improve the skin of more than 50% of women over the age of 50? Test using ? 0.05. (a) Test statistic:...
Researchers conducted a randomized, double-blind clinical trial to compare the herb St. John's Select one wet...
Researchers conducted a randomized, double-blind clinical trial to compare the herb St. John's Select one wet Wort, the antidepressant drug sertraline, and a placebo for the treatment of depression of the 10 points 113 patients in the herb treatment group, 23.9% showed improvement, compared to 24.8% of the 113 in the sertraline group and 31.9% of the 113 patients in the placebo group. Medscape Medical Newspublished this research in 2002. Is a normal model a good fit for the sampling...
plesse help with explanations and answers for all of those ... im stuck and cant figure...
plesse help with explanations and answers for all of those ...
im stuck and cant figure out how to do them. its the hard copy from
web work wnd they are all incorrect.
P align="center Inference about a Population Propor- tion /p hr Due: 07/01/2019 at 11:59pm EDT hrStudents will be able to: iUL ili;, Perform a hypothe- sis test on population proportion /li ili; Cakculate a confidence interval for a population proportionAi Interpret levels of significance/i il Perform a...
Pepper's Pill Mill is a pharmaceutical company that is developing a new drug to help fight...
Pepper's Pill Mill is a pharmaceutical company that is developing a new drug to help fight Alzheimer's disease. The drug has performed well in laboratory experiments, and the company has received approval to begin trials with people. To help make sure that the trial is unbiased, they are asking you to develop a Java program that can perform the data analysis and determine the drug's effectiveness. Each trial consists of 3 groups of individuals undergoing different treatment: Control Group- No...
Name: Section Number To be graded assignments must be completed and submitted on the original book...
Name: Section Number To be graded assignments must be completed and submitted on the original book page Hypothesis Testing -As a Diagnostic Test ? Answer the following questions over the content material you just read or watched. 1. What is a false positive rate in the context of hypothesis testing? 2. What is the goal of hypothesis testing? 3. What is a Type I error, and how is it related to an "alpha level?" 4. What does it mean to...
A. Issues [1] In addition to damages for one year's notice period, can a trial judge...
A. Issues [1] In addition to damages for one year's notice period, can a trial judge award significant damages for the mere fact of an employee's dismissal, or for the stigma that that dismissal brings? Or for the employer thereafter competing with the ex-employee for the clients, before the ex-employee has got a new job? B. Basic Facts [2] This is an appeal from 2009 ABQB 591 (CanLII), 473 A.R. 254. [3] Usually a judgment recites facts before law. But...
(6 points) A new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 50 women over the age of 50 used the new cream for 6 months. Of those 50 women, 31 of them reported skin improvement(as judged by a dermatologist). Is this evidence that the cream will improve the skin of more than 60% of women over the age of 50? Test using a = 0.01. (a) Test...
(6 points) A new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 50 women over the age of 50 used the new cream for 6 months. Of those 50 women, 31 of them reported skin improvement(as judged by a dermatologist). Is this evidence that the cream will improve the skin of more than 60% of women over the age of 50? Test using a = 0.01 (a) Test...
(6 pts) A new cream that advertises that it can reduce wrinkles and improve skin was subject to a recent study. A sample of 51 women over the age of 50 used the new cream for 6 months. Of those 51 women, 34 of them reported skin improvement(as judged by a dermatologist). Is this evidence that the cream will improve the skin of more than 50% of women over the age of 50? Test using ? 0.05. (a) Test statistic:...
Researchers conducted a randomized, double-blind clinical trial to compare the herb St. John's Select one wet Wort, the antidepressant drug sertraline, and a placebo for the treatment of depression of the 10 points 113 patients in the herb treatment group, 23.9% showed improvement, compared to 24.8% of the 113 in the sertraline group and 31.9% of the 113 patients in the placebo group. Medscape Medical Newspublished this research in 2002. Is a normal model a good fit for the sampling...
plesse help with explanations and answers for all of those ...
im stuck and cant figure out how to do them. its the hard copy from
web work wnd they are all incorrect.
P align="center Inference about a Population Propor- tion /p hr Due: 07/01/2019 at 11:59pm EDT hrStudents will be able to: iUL ili;, Perform a hypothe- sis test on population proportion /li ili; Cakculate a confidence interval for a population proportionAi Interpret levels of significance/i il Perform a...
Name: Section Number To be graded assignments must be completed and submitted on the original book page Hypothesis Testing -As a Diagnostic Test ? Answer the following questions over the content material you just read or watched. 1. What is a false positive rate in the context of hypothesis testing? 2. What is the goal of hypothesis testing? 3. What is a Type I error, and how is it related to an "alpha level?" 4. What does it mean to...
A. Issues [1] In addition to damages for one year's notice period, can a trial judge award significant damages for the mere fact of an employee's dismissal, or for the stigma that that dismissal brings? Or for the employer thereafter competing with the ex-employee for the clients, before the ex-employee has got a new job? B. Basic Facts [2] This is an appeal from 2009 ABQB 591 (CanLII), 473 A.R. 254. [3] Usually a judgment recites facts before law. But...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago