there are 43m fu service restaurants in alaska MIND TAP Probability and Samples:
ID: 3251177 • Letter: T
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there are 43m fu service restaurants in alaska MIND TAP Probability and Samples: The Distribution of Sample Means -Aplia Keep the Highest: 117 Aa Aa 3. Using z-scores with the distribution of sample means Different types of encoding affect a person's ability to remember words. You can test this by asking a partidpant to first do a task involving either vietai, auditory, or semantic encoding. Then ask the partidpant to recognize the encoded words. For example, for visual encoding, the participant may be asked to judge whether the word appears in all capital letters, whereas for auditory encoding, the partidpant may be asked to judge whether the word rhymes A professor of cognitive psychology is interested in the percent accuracy on this memory encoding task among college students. She measures the peroent accuracy for 36 randomly selected students. The professor knows that the distribution of scores is normal, but she does not know that the true average percent accuracy on this memory encoding task among college students is 0.793 percent correct with a standard deviation of 0.114 percent correct. The expected value of the mean of the 36 randomly selected students, M, is (Hint: Use the population mean and/or standard deviation just given to calculate the expected value of M.) The standard error of M is (Hint: Use the population mean andWor standard deviation just given to calculate the standard error.) The Dataview tool that follows displays a data set consisting of 200 potential samples (each sample has 36 observations) Statistics for 200 Randam samples In 36l drawn from anormal distribution R was used to generate the samples. variable v Sample MeansExplanation / Answer
Answer to the questions based on formula:
Expected mean is same as sample mean , as sample mean is the best estimator of population mean.
Expected Mean = 0.793
.
Standard deviation of population is best estimated by "Sample standard deviation divided by square root of the sample size"
Standard deviation = 0.114/ 36
Standard deviation = 0.019
.
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