9.1/5Identify the test statisticp-value Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 35 of the 41 subjects treated with echinaceadeveloped rhinovirus infections. In a placebo group, 88 of the 105 subjects developed rhinovirus infections. Use a 0.01 significance level totest the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below.

Answered: Image /qna-images/answer/cb22f9cd-9983-4d01-b82f-68b786d9ee2e.jpg

Answered: Rhino viruses typically cause common…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Compute the p-value for a Chi-Squared Goodness of Fit Test with a sample size of 200, 6 categories and a test statistic of 12.3331. Round to the fourth
The amount of calories consumed by customers at the Chinese buffet is normally distributed with mean 2867 and standard deviation 683. One randomly selected customer is observed to see how many calories X that customer consumes. Round all answers to 4 decimal places where possible. The Piggy award will given out to the 2% of customers who consume the most calories. What is the fewest number of calories a person must consume to receive the Piggy award? calories. (Round to the nearest calorie)
The sample mean and standard deviation from a random sample of 32 observations from a normal population were computed asx =25 and s = 10. Calculate the t statistic of the test required to determine whether there is enough evidence to infer at the 8% significance level that the population mean is greater than 22.Test Statistic =
* The plant manager believes that the operators take a lunch break for more than 60 minutes. A sample of 15 operators from a normal population were randomly selected, and it was found out that their mean lunch break is 60 minutes with a standard deviation of 5 minutes. At 0.05 level of significance, is the mean lunch break greater than 60 minutes?
200 patients involves 200 particpants in comparing an experimental medication to a placebo. Each person enrolled is randomized to recieve either the experimental medication or placebo. Data is collected at the end of the study after 6 weeks. Test if there is significant difference in mean systolic blood pressures between grouos using a=0.05. Meqn of 174 standard deviation of 19.5 Mean systolic blood pressure: experimental (n= 100) 120.2 (15.4) placebo (100) 131.4 (18.9) Hypertensive (%) exp. 14 placebo 22 Side effects (%) exp. 6 placebo 8
1
At Atlanta’s Hartsfield International Airport, airport officials monitor the average time taken to get passenger checked luggage to the luggage belt after a flight arrival. Last year, the average time was 15 minutes. This year, a sample of 35 flights yielded a sample mean of 17 minutes and a sample standard deviation of 5 minutes. At the 5% level of significance, can you conclude that the average time to get luggage to the belt has changed from last year? How about at the 1% significance level?
4
In the last quarter of 2007, a group of 64 mutual funds had a mean return of a standard deviation of 0.6% Consider the Normal model N(0.052, 0.006) for the returns of these mutual funds a) What value represents the 40th percentile of these returns? b) What value represents the 99th percentile? What's the IQR, or interquartile range, of the quarterly returns for this group of funds? SOCCE a) The value that represents the 40th percentile is%. (Round to two decimal places as needed.) b) The value that represents the 99th percentile is%. (Round to two decimal places as needed.) c) The IQR is% (Round to two decimal places as needed.)
Select the correct answer below: 0.025< p-value <0.05 0.005< p-value <0.01 p-value <0.005 0.01< p-value <0.025
Compute the p-value for a Chi-Squared Goodness of Fit Test with a sample size of 300, 5 categories and a test statistic of 20.3323. Round to the fourth

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