Homework Help is Here – Start Your Trial Now!
Math
Statistics
es a significant difference between the population mean and t with Zcrit of sample mean of IQ test scores. The pills do work. ( α-01), %3D Therefore, 99% Level of Confidence Fail to Reject Reject Reject 0.5% 0.5% Zcrit = -2.576 3.33 Z crit = +2.576 %3D Zobt Let's Practice Two-Tailed Z Test Blood glucose levels for obese patients have a mean of 100 with a standard deviation of 15. A researcher thinks that a diet high in raw corn starch will have a negative or positive effect on blood glucose levels. A sample of 30 patients who have tried the raw corn starch diet have a mean glucose level of 140. Test the hypothesis that the raw cornstarch had an effect at a significant level of 0.05 Step 1: Determine the null hypothesis H, : µ = Step 2: Two-tailed test Step 3: Select significance level a = Step 4: Do we do a Z test of T test? Step 5: Find the critical value Zcrii from the t Table. Draw and label the graph. From the t Table. Zerit for a = 0.05, ± 1.96 Note that a= 0.05 (5%) means 2.5% in each tail. This alpha level indicates the Level of Confidence to be 95%. Level of Confidence Fail to Reject Reject Reject a/2 2 Zarit =- Z crit = Step 6: Calculate the Test Statistic (Zobt) N = Step 7-9. State the conclusion II

es a significant difference between the population mean and t with Zcrit of sample mean of IQ test scores. The pills do work. ( α-01), %3D Therefore, 99% Level of Confidence Fail to Reject Reject Reject 0.5% 0.5% Zcrit = -2.576 3.33 Z crit = +2.576 %3D Zobt Let's Practice Two-Tailed Z Test Blood glucose levels for obese patients have a mean of 100 with a standard deviation of 15. A researcher thinks that a diet high in raw corn starch will have a negative or positive effect on blood glucose levels. A sample of 30 patients who have tried the raw corn starch diet have a mean glucose level of 140. Test the hypothesis that the raw cornstarch had an effect at a significant level of 0.05 Step 1: Determine the null hypothesis H, : µ = Step 2: Two-tailed test Step 3: Select significance level a = Step 4: Do we do a Z test of T test? Step 5: Find the critical value Zcrii from the t Table. Draw and label the graph. From the t Table. Zerit for a = 0.05, ± 1.96 Note that a= 0.05 (5%) means 2.5% in each tail. This alpha level indicates the Level of Confidence to be 95%. Level of Confidence Fail to Reject Reject Reject a/2 2 Zarit =- Z crit = Step 6: Calculate the Test Statistic (Zobt) N = Step 7-9. State the conclusion II

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
II Sh) with Zcrit of Therefore, (a = .01). %66 Level of Confidence Fail to Reject Reject Reject 0.5% 0.5% Zcrit = -2.576 bubiy Z crit = +2.576 3.33 %3D Let's Practice Two-Tailed Z Test Blood glucose levels for obese patients have a mean of 100 with a standard deviation of 15. A researcher thinks that a diet high in raw corn starch will have a negative or positive effect on blood glucose levels. A sample of 30 patients who have tried the raw corn starch diet have a mean glucose level of 140. Test the hypothesis that the raw cornstarch had an effect at a significant level of 0.05 Step 1: Determine the null hypothesis %3D = 11 : °H +ri : "H Step 2: Two-tailed test Step 3: Select significance level a = Step 4: Do we do a Z test of T test? Step 5: Find the critical value Zerii from the t Table. Level of Confidence Draw and label the graph. Fail to Reject From the t Table. Zerit for a= 0.05, + 1.96 Reject Reject Note that a= 0.05 (5%) means 2.5% in each tail. This alpha level indicates the Level of Confidence to be 95%. Zcrit = Step 6: Calculate the Test Statistic (Zobt) = X %3D = N = rl Step 7-9. State the conclusion
Transcribed Image Text:II Sh) with Zcrit of Therefore, (a = .01). %66 Level of Confidence Fail to Reject Reject Reject 0.5% 0.5% Zcrit = -2.576 bubiy Z crit = +2.576 3.33 %3D Let's Practice Two-Tailed Z Test Blood glucose levels for obese patients have a mean of 100 with a standard deviation of 15. A researcher thinks that a diet high in raw corn starch will have a negative or positive effect on blood glucose levels. A sample of 30 patients who have tried the raw corn starch diet have a mean glucose level of 140. Test the hypothesis that the raw cornstarch had an effect at a significant level of 0.05 Step 1: Determine the null hypothesis %3D = 11 : °H +ri : "H Step 2: Two-tailed test Step 3: Select significance level a = Step 4: Do we do a Z test of T test? Step 5: Find the critical value Zerii from the t Table. Level of Confidence Draw and label the graph. Fail to Reject From the t Table. Zerit for a= 0.05, + 1.96 Reject Reject Note that a= 0.05 (5%) means 2.5% in each tail. This alpha level indicates the Level of Confidence to be 95%. Zcrit = Step 6: Calculate the Test Statistic (Zobt) = X %3D = N = rl Step 7-9. State the conclusion
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS