'Normal table' diaporamas de présentation

9 Master

9 Master. Presentation 8.1. Example. A survey of 436 workers showed that 192 of them said that it was seriously unethical to monitor employee e-mail. When 121 senior-level bosses were surveyed, 40 said that it was seriously unethical to monitor employee e-mail.

2.15k views • 145 slides

Review #2

Review #2. Chapter 9 Chapter 10 Chapter 11 and 12. Chapter 9 Sampling Distributions. A statistic is a random variable describing a characteristic of a random samples. Sample mean Sample variance

1.08k views • 74 slides

Quantitative Analysis for Management

Quantitative Analysis for Management. Chapter 2 Probability Concepts and Applications. Chapter Outline. 2.1 Introduction 2.2 Fundamental Concepts 2.3 Mutually Exclusive and Collectively Exhaustive Events 2.4 Statistically Independent Events

711 views • 59 slides

Chapter 9

Chapter 9. Hypothesis Testing Null and Alternative Hypotheses and Errors in Testing Large Sample Tests about a Mean: Rejection Points Small Sample Tests about a Population Mean Hypothesis Tests about a Population Proportion. Introduction. A Hypothesis Test is a statistical procedure

788 views • 51 slides

7. Comparing Two Groups

7. Comparing Two Groups. Goal: Use CI and/or significance test to compare means (quantitative variable) proportions (categorical variable) Group 1 Group 2 Estimate Population mean Population proportion

667 views • 41 slides

7. Comparing Two Groups

7. Comparing Two Groups. Goal: Use CI and/or significance test to compare means (quantitative variable) proportions (categorical variable) Group 1 Group 2 Estimate Population mean Population proportion

520 views • 41 slides

Comparing Means from Two Samples

499 views • 33 slides

More about tests

445 views • 33 slides

Social Science Reasoning Using Statistics

Social Science Reasoning Using Statistics. Psychology 138 2013. Exam 2 is Wed. March 6 th Quiz 4 I will move the due date to Mon March 4 th Covers z-scores, Normal distribution, and describing correlations. Announcements. Transformations: z-scores Normal Distribution

439 views • 30 slides

THE NORMAL DISTRIBUTION

537 views • 30 slides

Sampling Distribution of the Mean

Sampling Distribution of the Mean. Sampling Distribution of the Mean. It is not necessary to use the finite population correction factor even when the population is finite if the sample size is less than or equal to 5% of the population (n/N < .05). Properties of the Standard Error.

987 views • 27 slides

Normal Percentiles

490 views • 23 slides

Probability models

Probability models. Probability models sample space (set of possible outomes ) events probabilities Rules for probabilities Assigning probabilities when the sample space is finite Assigning probabilities when all outcomes are equally likely Independence and the multiplication rule .

394 views • 21 slides

Chapter 7: The Distribution of Sample Means

Chapter 7: The Distribution of Sample Means. The Distribution of Sample Means. In Chapter 7 we extend the concepts of z-scores and probability to samples of more than one score. We will compute z-scores and find probabilities for sample means.

197 views • 19 slides

Percentiles and the Normal Curve

564 views • 15 slides

PERT Program Evaluation and Review Technique

575 views • 10 slides

Suppose Z ~ N(0, 1). Use the standard Normal table or your calculator to find P(z ? -2.30).

Suppose Z ~ N(0, 1). Use the standard Normal table or your calculator to find P(z ? -2.30). 0.0107 0.0099 0.9893 0.9901 0.9898. 10. Suppose Z ~ N(0, 1). Use the standard normal table or your calculator to determine P(-2.25 < z < 1.77). 0.9494 0.9415 0.9477 0.9616 0.9432. 10.

385 views • 9 slides

More about the Confidence Interval of the Population Mean

More about the Confidence Interval of the Population Mean. Remember looking at the normal table? Sure you do!

172 views • 8 slides

Part A

The Wingate Manufacturing Company experiences a mean usage of 460 motor castings during the reorder lead-time. The standard deviation of usage during this period is 160 castings.

217 views • 8 slides

Unit 3: Variation and the Normal Curve

228 views • 7 slides