# Essays Tagged: "Confidence interval"

#### Case Golf (statistics)

contents1. Introduction12. Problem Statement13. Hypothesis14. P-value15. Statistical summary26. 95% confidence interval 27. Conclusion3Appendix 141. IntroductionThis report is about the case study of ... 50Maximum289Sum10700Count40This general data is used to calculate the other statistical test.6. 95% Confidence intervalQuestion 4Determine the 95% confidence interval for the population mean of each m ...

(2 pages) 237 0 1.0 Jan/2004

#### Outline of Chapter 7 text - Elementary Statistics: A Brief Version(A. Bluman 3rd Ed., 2003)

Chapter 7 OutlineObjectivesFind the confidence interval for the mean when s is known or n > 30.Determine the minimum sample size for ... 30.Determine the minimum sample size for finding a confidence interval for the mean.Find the confidence interval for the mean when s is unknown and n < 30.Objectives (cont'd.)Find the con ...Find the confidence interval for a proportion.Determine the minimum sample size for finding a confidence interval for a proportion.Find a confidence interval for a variance and a standard dev ...

(3 pages) 123 0 4.7 Jan/2006

Subjects: Science Essays > Mathematics

#### Outline of Chapter 8 text - Elementary Statistics: A Brief Version(A. Bluman 3rd Ed., 2003)

ng the z test.Test variances or standard deviations using the chi square test.Test hypotheses using confidence intervals.Explain the relationship between type I and type II errors and the power of a t ... he three methods used to test hypotheses are:1. The traditional method.2. The P-value method.3. The confidence interval method.Statement of a HypothesisA statistical hypothesis is a conjecture about a ...

(5 pages) 237 0 4.3 Apr/2006

Subjects: Science Essays > Mathematics

#### Outline of Chapter 9 text - Elementary Statistics: A Brief Version(A. Bluman 3rd Ed., 2003)

dependent and Dependent SamplesDependent Samples are samples that are paired or matched in some way.Confidence Intervals: Unequal VarianceFormula for the confidence intervals for the difference of two ... small independent sample when the variances are unequal:d.f. = the smaller value of n1 - 1 or n2 - 1Confidence Intervals: Equal VarianceFormula for the confidence intervals for the difference of two m ...

(4 pages) 93 0 4.2 Apr/2006

Subjects: Science Essays > Mathematics

#### Probability Theory and Decision Making Paper: Exploring India's Market for Coffee Simulation

f the decision making pressure off Coffee Time because of the resources Forefront will be providing.Confidence IntervalThe confidence interval is a range of values constructed from sample data so the ... structed from sample data so the parameter occurs within that range at a specified probability. The confidence interval determines the margin of error the research obtains or is willing to accept. The ...

(5 pages) 362 0 4.7 Mar/2007

#### Real Estate

true measurement of the independent variable which is what will affect the results of the test. The confidence rate for this experiment would be 95%, so the chance of finding opposite results in the f ... edroom houses and has a mean price of \$200,350 with a standard deviation of \$43,612. Based on a 95% confidence interval and a population sample of 105, the null hypothesis will be rejected if the calc ...

(5 pages) 258 0 0.0 Mar/2008

Subjects: Businesss Research Papers > Management

#### Diabetes Testing

cluster design. The statistical significance of each determinant of health was derived from the 95% confidence intervals (on the basis of the bootstrap variance estimate) of the regression coefficient ... d by Statistics Canada.ResultsComorbidities had the largest impact on HRQL, with stroke (-0.11; 95% confidence interval [CI] = -0.17, -0.06) and depression (-0.11; 95% CI = -0.15, -0.06) being associa ...

(1 pages) 23 0 5.0 May/2008

Subjects: Science Essays > Biology

#### MBA 510 Individual – Problem Set II

nd the sample size is less than 30. I would need to make a normality assumption.C. For a 90 percent confidence interval, what is the value of t?Answer: N-1 = 15, which gives a value of df of 15. Using ... ich gives a value of df of 15. Using the 90% interval t is equal to: 1.753D. Develop the 90 percent confidence interval for the population mean.Answer:X ± t S which equals: 68.765 and 51.235&ra ...

(3 pages) 196 0 3.3 Nov/2008

Subjects: Businesss Research Papers > Management

#### Finding the price of a home using regression

re is definitely a relationship between the selling price of a house and the characteristics. A 95% confidence level and a confidence interval estimate of a predicted value of the selling price were u ... arage, whether a basement is in the house and the age of the house.MegaStat Regression OutputTable 2Confidence IntervalVariablesCoefficientsStd. ErrortP-value95% Lower95% UpperIntercept-15.21249.8179- ...

(12 pages) 74 0 5.0 Jan/2009

#### Aquine Simulation Paper

variation, mean variation, and horizontal and vertical difference. Howard suggested implementing a confidence interval to determine were the errors occurred and how they could be fixed. I chose to pu ...

(1 pages) 174 1 3.0 Mar/2009

Subjects: Businesss Research Papers > Management

#### Conclusions Memo: Baseball ERA/Team Paper/ RES 341 with instructor notes

ins between the HiERA and LoERA samples. Consequently, Team A determined to reject the null.Using a confidence level of 95%, Team A came up with the computations for the confidence intervals. The conf ... idence level is the percentage of times that the mean will fall within the calculated range for the confidence interval. Calculations show with both the LoERA mean of 87.25 and the HiERA mean of 74 th ...

(2 pages) 149 0 5.0 Mar/2009

#### Final Research Project Baseball ERA PPT Presentation Notes/ Team Project/ RES 341 with instructor comments

ampling design•Data collection•Data analysis using descriptive statistics•ConclusionsConfidence intervalsFinal recommendations based on your findings---*Instructor Comments: Very good a ... upports the alternative hypothesis no further research is needed at this time.Final Conclusion:95 % Confidence IntervalsTable 1.6: Confidence Intervals- Using a confidence level of 95%, Team A came up ...

(6 pages) 162 0 4.0 Mar/2009

#### best essay

e revenue in the future.After we input the data, we run the Apriori node in SPSS. Figure 2 (minimum confidence level 80%) gave us overview information about this dataset. The last rule tells us that o ... e. From this example, we can analyze each rule to get more information. Then I decrease the minimum confidence level to 75%, 26 rules are produced. By following the rule I listed above, we will be abl ...

(2 pages) 3 0 0.0 Oct/2014

Subjects: Art Essays

#### Stats

Total sample size : ntot = 75 DescriptivesAbsentNMeanStd. DeviationStd. Error95% Confidence Interval for MeanMinimumMaximumLower BoundUpper BoundMonday15... nt Variable: Absent Tukey HSD(I) Day(J) DayMean Difference (I-J)Std. ErrorSig.95% Confidence IntervalLower BoundUpper BoundMondayTuesday2.8001.459.317-1. ...

(3 pages) 3 0 0.0 Nov/2014

Subjects: Science Essays