Study Guides
... use to determine if the sample is large enough to assume that the sampling distribution is approximately normal? ...
... use to determine if the sample is large enough to assume that the sampling distribution is approximately normal? ...
Introduction to Statistical Inference
... Introduction • Suppose that a pharmaceutical company is concerned that the mean potency m of an antibiotic meet the minimum government potency standards. They need to decide between two possibilities: –The mean potency m does not exceed the mean ...
... Introduction • Suppose that a pharmaceutical company is concerned that the mean potency m of an antibiotic meet the minimum government potency standards. They need to decide between two possibilities: –The mean potency m does not exceed the mean ...
The t Test for Two Independent Samples
... 10.4 Assumptions for the Independent-Measures t-Test • The observations within each sample must be independent • The two populations from which the samples are selected must be normal • The two populations from which the samples are selected must have equal variances – Homogeneity of variance ...
... 10.4 Assumptions for the Independent-Measures t-Test • The observations within each sample must be independent • The two populations from which the samples are selected must be normal • The two populations from which the samples are selected must have equal variances – Homogeneity of variance ...
Point Estimates
... It is a single number that is based on sample data that represents a plausible value of the characteristic for the population. ...
... It is a single number that is based on sample data that represents a plausible value of the characteristic for the population. ...
t - UC Davis
... • IMPLICATIONS: The confidence interval around are teststatistic suggests that our estimate of 84.61 significantly departs from 80, • We conclude this at the 95 percent confidence level. • That is, in repeated samples (if I kept giving this exam over and over again to this class!), 95% of all sample ...
... • IMPLICATIONS: The confidence interval around are teststatistic suggests that our estimate of 84.61 significantly departs from 80, • We conclude this at the 95 percent confidence level. • That is, in repeated samples (if I kept giving this exam over and over again to this class!), 95% of all sample ...
Ch9
... Select the test statistic Determine the critical value rule for rejecting H0 Collect the sample data and calculate the value of the test statistic 6. Decide whether to reject H0 by using the test statistic and the critical value rule 7. Interpret the statistical results in managerial terms ...
... Select the test statistic Determine the critical value rule for rejecting H0 Collect the sample data and calculate the value of the test statistic 6. Decide whether to reject H0 by using the test statistic and the critical value rule 7. Interpret the statistical results in managerial terms ...
