Hypothesis Testing Using a Single Sample
... 2. We won’t test H0 = 50 versus Ha: > 100. The number appearing in the alternative hypothesis must be identical to the hypothesized value in H0. 3. Rejection of H0 indicates strong evidence that Ha is true. However, non-rejection of H0 does not mean strong support for H0 only lack of strong evid ...
... 2. We won’t test H0 = 50 versus Ha: > 100. The number appearing in the alternative hypothesis must be identical to the hypothesized value in H0. 3. Rejection of H0 indicates strong evidence that Ha is true. However, non-rejection of H0 does not mean strong support for H0 only lack of strong evid ...
Section 1 Outline - Princeton High School
... Practical difficulties, such as undercoverage and nonresponse in a sample survey, can cause additional errors that may be larger than the random sampling error. Using CI is not in great danger if data can plausibly be thought of as observations taken at random from a population. The formula for CI i ...
... Practical difficulties, such as undercoverage and nonresponse in a sample survey, can cause additional errors that may be larger than the random sampling error. Using CI is not in great danger if data can plausibly be thought of as observations taken at random from a population. The formula for CI i ...
The shifting boxplot. A boxplot based on essential
... basis for the exploration of data and have been used for the communication of results as well. Graphical methods assist in making statistical decisions, selecting methods to analyse data, and evaluating the limitations of typical null hypothesis tests (see Loftus, 1993; Marmolejo-Ramos & Matsunaga, ...
... basis for the exploration of data and have been used for the communication of results as well. Graphical methods assist in making statistical decisions, selecting methods to analyse data, and evaluating the limitations of typical null hypothesis tests (see Loftus, 1993; Marmolejo-Ramos & Matsunaga, ...
1. Statistics - hills
... • Wendy is 1.7m tall. She is taller than 65 of the students in her grade and no one is the same height as she is. There are 139 students in her ...
... • Wendy is 1.7m tall. She is taller than 65 of the students in her grade and no one is the same height as she is. There are 139 students in her ...
Making sense of data - "essentials" series
... Categorical data place individuals into groups. For example, male/female, own your home/don’t own, or Labour/Conservative/Liberal. Categorical data often come from survey data such as the Census. Categorical data are typically summarised by reporting either the number of individuals falling into eac ...
... Categorical data place individuals into groups. For example, male/female, own your home/don’t own, or Labour/Conservative/Liberal. Categorical data often come from survey data such as the Census. Categorical data are typically summarised by reporting either the number of individuals falling into eac ...
1 - JustAnswer
... The fourth step is to calculate the probability value (often called the p value). The p value is the probability of obtaining a statistic as different or more different from the parameter specified in the null hypothesis as the statistic computed from the data. The calculations are made assuming tha ...
... The fourth step is to calculate the probability value (often called the p value). The p value is the probability of obtaining a statistic as different or more different from the parameter specified in the null hypothesis as the statistic computed from the data. The calculations are made assuming tha ...
Section 03 Data Handling and Statistics(powerpoint)
... • Quality control chart: time plot of a measured quantity assumed to be constant. • Inner and Outer control limits • Inner control limit: 2s (1/20) • Outer control limit: 2.5s (1/100) or 3s(1/500) ...
... • Quality control chart: time plot of a measured quantity assumed to be constant. • Inner and Outer control limits • Inner control limit: 2s (1/20) • Outer control limit: 2.5s (1/100) or 3s(1/500) ...
1 An Exercise in STATISTICS Steps in Conducting Research
... For example, a researcher wants to study whether a new drug is better than an old drug to reduce anxiety symptoms. If we gave the old drug to the subjects and assessed them and then gave the new drug, there might be carry-over effects from the old drug still. Thus, we might want to use two different ...
... For example, a researcher wants to study whether a new drug is better than an old drug to reduce anxiety symptoms. If we gave the old drug to the subjects and assessed them and then gave the new drug, there might be carry-over effects from the old drug still. Thus, we might want to use two different ...