Candidate Name
... 6. (c) Correct interpretation of the p-value at the 0.05 significance level e.g. “since the p-value is less than 0.05, there is evidence to suggest we reject the null hypothesis (Ho) (or accept the alternative hypotheses (H1))” 6. (d) For relating the conclusion to the original problem e.g. “there i ...
... 6. (c) Correct interpretation of the p-value at the 0.05 significance level e.g. “since the p-value is less than 0.05, there is evidence to suggest we reject the null hypothesis (Ho) (or accept the alternative hypotheses (H1))” 6. (d) For relating the conclusion to the original problem e.g. “there i ...
Hypothesis Testing - Penn State Mechanical Engineering
... rejected. In other words, the null hypothesis is in fact true, but it is rejected erroneously. o A type II error (also called an error of the second kind) occurs when the null hypothesis is wrongly accepted. In other words, the null hypothesis is in fact false, but it is accepted (not rejected) erro ...
... rejected. In other words, the null hypothesis is in fact true, but it is rejected erroneously. o A type II error (also called an error of the second kind) occurs when the null hypothesis is wrongly accepted. In other words, the null hypothesis is in fact false, but it is accepted (not rejected) erro ...
Document
... According to a study published in March, 2006 the mean length of a phone call on a cellular telephone was 3.25 minutes. A researcher believes that the mean length of a call has increased since then. A Type I error occurs if the sample evidence leads the researcher to conclude that >3.25 when, in fa ...
... According to a study published in March, 2006 the mean length of a phone call on a cellular telephone was 3.25 minutes. A researcher believes that the mean length of a call has increased since then. A Type I error occurs if the sample evidence leads the researcher to conclude that >3.25 when, in fa ...
Excel Version
... The reason is science believes any good idea can be replaced with a better idea at any time. You never prove an idea is true A better idea may arrive anytime so how do you change if your old idea was proven true? “Yippee, my horse did not lose” is a odd way of saying it won. ‘Reject the nu ...
... The reason is science believes any good idea can be replaced with a better idea at any time. You never prove an idea is true A better idea may arrive anytime so how do you change if your old idea was proven true? “Yippee, my horse did not lose” is a odd way of saying it won. ‘Reject the nu ...
CORP: Minimizing the chances of false positives
... hypothesis—we get a false positive— or we can fail to reject a false null hypothesis—we get a false negative.1 We control the chance that we get a false positive when we define the critical significance level ␣, the probability that we reject the null hypothesis given that the null hypothesis is tru ...
... hypothesis—we get a false positive— or we can fail to reject a false null hypothesis—we get a false negative.1 We control the chance that we get a false positive when we define the critical significance level ␣, the probability that we reject the null hypothesis given that the null hypothesis is tru ...
Statistical Inference
... 9.1 – Introduction to Hypothesis or Significance Testing In several examples we considered in the sections on the binomial distribution and the sampling distribution we made conclusions about what was true of the population based upon a probability. In essence in all of those situations we conducted ...
... 9.1 – Introduction to Hypothesis or Significance Testing In several examples we considered in the sections on the binomial distribution and the sampling distribution we made conclusions about what was true of the population based upon a probability. In essence in all of those situations we conducted ...
Chapter 9
... The production line for Glow toothpaste is designed to fill tubes of toothpaste with a mean weight of 6 ounces. Periodically, a sample of 30 tubes will be selected in order to check the filling process. Quality assurance procedures call for the continuation of the filling process if the sample resul ...
... The production line for Glow toothpaste is designed to fill tubes of toothpaste with a mean weight of 6 ounces. Periodically, a sample of 30 tubes will be selected in order to check the filling process. Quality assurance procedures call for the continuation of the filling process if the sample resul ...
Chapter 15
... 1. To become aware of the nature of statistical significance. 2. To understand the concept of hypothesis development and how to test hypotheses. 3. To understand the differences between Type I and Type II errors. 4. To be familiar with several of the more common statistical tests of goodness of fit, ...
... 1. To become aware of the nature of statistical significance. 2. To understand the concept of hypothesis development and how to test hypotheses. 3. To understand the differences between Type I and Type II errors. 4. To be familiar with several of the more common statistical tests of goodness of fit, ...
Chapter 8 Notes - Mr. Davis Math
... • The Medical Rehabilitation Education Foundation reports that the average cost of rehabilitation for stroke victims is $24,672. To see if the average cost of rehabilitation is different at a particular hospital, a researcher selects a random sample of 35 stroke victims at the hospital and finds tha ...
... • The Medical Rehabilitation Education Foundation reports that the average cost of rehabilitation for stroke victims is $24,672. To see if the average cost of rehabilitation is different at a particular hospital, a researcher selects a random sample of 35 stroke victims at the hospital and finds tha ...
Chapter 8 Exam A.tst
... unknown. He picked a simple random sample of size 20 from the population. Lou wanted to test a claim about a mean of a different population whose standard deviation was known. He picked a simple random sample of size 22 from that population. George said that Sam would need to determine whether his s ...
... unknown. He picked a simple random sample of size 20 from the population. Lou wanted to test a claim about a mean of a different population whose standard deviation was known. He picked a simple random sample of size 22 from that population. George said that Sam would need to determine whether his s ...
