Example of a sample statistic
[DOC File]Chapter Seven - Miami Dade College
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An estimator is a sample statistic used to estimate a population parameter. For example, the sample mean is an estimator of the population mean μ and the sample proportion is an estimator of the population proportion p. The value(s) assigned to a population parameter based on the value of a sample statistic is called an estimate.
[DOC File]STAT 515 --- Chapter 3: Probability
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Example: If our sample is: 14, 7, 9, 2, 16, 18. then X(3) = Section 2.2: Estimation • Often we use a statistic to estimate some aspect of a population of interest. • A statistic used to estimate is called an estimator. Familiar Examples: • The sample mean: • The sample variance: • The sample …
[DOC File]Statistics
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If we survey a sample, say 100 first-year students at your college, and find the average amount of money spent by these students on textbooks, the resulting number is called a statistic. The sample size was 100. Example: A researcher wanted to know how citizens of Tacoma felt about a voter initiative.
[DOC File]SAMPLE LEARNING MODULE CONTENT
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NOTE: IN ADDITION TO HANDING IN A HARD COPY, PLEASE EMAIL COPIES OF YOUR WORK TO: kcobb@stanford.edu . The final part of your homework is to write a brief explanation of a simple statistical concept and to find one or two INTERESTING examples in the medical literature of medical studies where the statistic or concept was applied (to access Stanford’s Lane Medical Library, where many …
[DOC File]Statistics
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If we survey a sample, say 100 first-year students at your college, and find the average amount of money spent by these students on textbooks, the resulting number is called a statistic. Statistic. A statistic is a value (average, percentage, etc.) calculated using the data from a sample. Example 2
[DOC File]HYPOTHESIS TESTING: AN EXAMPLE
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One-Sample t-Test – Example 2 (Memory Booster) ANSWER KEY A nutrition store in the mall is selling “Memory Booster,” which is a concoction of herbs and minerals that is intended to improve memory performance, but there is no good reason to think it couldn't possibly do the opposite.
[DOC File]Chapter 1 Vocabulary - Introduction to Statistics
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Standardized Test Statistic – Section 8.2 – Testing the Difference Between Menas (Small Samples) Two Sample t-test – Test Statistic – Standardized test statistic – Pooled Estimate of the Standard Deviation – Chapter 9 – Correlation and Regression. Write a definition in your own words. Give an example when applicable. Section 9.1 ...
[DOC File]Sampling Reese’s Pieces Activity
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statistic. is a number that describes a sample. The value of a statistic is known when we have taken a sample, but it can change from sample to sample. We often use a statistic to estimate an unknown parameter. Mean of a population: Mean of a sample: or . Population proportion: Sample proportion: Standard Deviation of population:
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