The expected value of the mean of the 49 randomly selected students, M. The professor knows that the distribution of scores is normal, but she does not know that the true average number of digits successfully repeated on the digit span task among college students is 7.06 digits with a standard deviation of 1.63 digits. She measures the number of digits successfully repeated for 49 randomly selected students. A professor of cognitive psychology is interested in the number of digits successfully repeated on the digt span task among college students. The participant's score is the longest string of digits she can successfully repeat. successfully, she will hear five random digits on the next trial. For instance, if the participant repeats four digits. If the participant is successful, the length of the next string is increased by one. The participant must then repeat the digits in the correct ordet. Standard Normal Distribution Standard Deviation - 1.On each trial of a digit span memory task, the participant is asked to read aloud a string of random digits. The 2-score corresponding to the mean of Sample 103 is Use the Distributions tool that follows to determine the probability of obtaining a mean number of digits successfully repeated greater than the mean of Sample 103. The standard deviation for Sample 103 is 1.600 Using the distribution of sample means, calculate the 2-score corresponding to the mean of Sample 103. The samples are numbered in the first column, and you can use the scroll bar on the right side to scroll to the sample you want.) Use the Data View tool to find the mean and the standard deviation for Sample 103. (Hint: To see a particular sample, click the Observations button on the left-hand side of the DataView tool. The mean for Sample 103 is 497 The standardim a 60 MacBook Pro The DataView tool that follows displays a data set consisting of 200 potential samples (each sample has 64 observations). The samples are numbered in the first column, and you can use the scroll bar on the right side to scroll to the sample you want.) Use the DataView tool to find the mean and the standard deviation for Sample 103. (Hint: Use the population mean and/or standard deviation just given to The Data View tool that follows displays a data set consisting of 200 potential samples (each sample has 64 observations). The expected value of the mean of the 64 randomly selected students, M, is mean and/or standard deviation just given to calculate the expected value of M.) (Hint: Use the population The standard error of Mis calculate the standard error.). The professor knows that the distribution of scores is normal, but he does not know that the true average number of digits successfully repeated on the digit span task among college students is 7.06 digits with a standard deviation of 1.610 digits. ![]() He measures the number of digits successfully repeated for 64 randomly selected students. A professor of cognitive psychology is interested in the number of digits successfully repeated on the digit span task among college students. The participant's score is the longest string of digits he can successfully repeat. For instance, if the participant repeats four digits successfully, he will hear five random digits on the next trial. The participant must then repeat the digits in the correct order. On each trial of a digit span memory task, the participant is asked to read aloud a string of random digits.
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