a) For 9 children, the population mean here is computed as:
Therefore 73.8 is the required population mean here.
b) The sample means here are computed as:
Mean(Sample 1) = (76 + 62 + 83) / 3 = 73.7 < 73.8 that is the population mean
Mean(Sample 2) = (86 + 78 + 72)/3 = 78.7 > 73.8 that is the population mean here.
Therefore 73.7 and 78.7 are the sample means here.
c) As the mean pulse rate of sample 1 is 73.7 < 73.8, therefore it underestimates the population mean here.
Also, as As the mean pulse rate of sample 1 is 78.7 > 73.8, therefore it overestimates the population mean here.
The following data represent the pulse rates (beats per minute) of nine students enroled in a...
The following data represent the pulse rates (beats per minute) of nine students enrolled in a statistics course. Treat the nine students as a population. Complete parts (a) through (c). Student Perpectual Bempah Megan Brooks Jeff Honeycutt Clarice Jefferson Crystal Kurtenbach Janette Lantka Kevin McCarthy Tammy Ohm Kathy Wojdya Pulse 72 86 71 63 65 67 74 63 74 (a) Determine the population mean pulse. The population mean pulse is approximately beats per minute. (Round to one decimal place as...
please answer all sections EQuestion Help The accompanying data represent the pulse rates (beats per minute) of nine students enrolled in a statistics course Treat the nine students as a population. Complete parts (a) through (c) Click the icon to view the data on the students' pulse rates. (a) Compute the population standard deviation σ : L beats per minute (Round to one decimal place as needed.) (b) Determine the sample standard deviation of the following three simple randorn samples...
Sometimes, data must be modified before a stem-and-leaf plot may be constructed. For example, the data in the accompanying table represent the five-year rate of return of 20 mutual funds and are reported to the hundredth decimal place. So, if we used the integer portion of the data as the stem and the decimals as the leaves, then the stems would be 8, 9, 10, ..., 19; but the leaves would be two digits (such as 94. 53, and so...
The accompanying data represent the pulse rates (beats per minute) of nine students. Treat the nine students as a population Compute the z-scores for all the students. Compute the mean and standard deviation of these z-scores Click the icon to view the data table. i Pulse Rates Compute thez-scores for all the students. Complete the table. Student Student z-score 2-score Student 1 Student 6 Student 2 Student 7 Student Pulse Student 3 Student 1 77 Student 8 Student 2 60...
The accompanying data represent the pulse rates (beats per minute) of nine students. Treat the nine students as a population. Compute the z-scores for all the students. Compute the mean and standard deviation of these z-scores. LOADING... Click the icon to view the data table. Compute the z-scores for all the students. Complete the table. Student z-score Student z-score Student 1 nothing Student 6 nothing Student 2 nothing Student 7 nothing Student 3 nothing Student 8 nothing Student 4 nothing...
ork The accompanying data represent the pulse rates (beats per minute) of nine students. Treat the nine students as a population. students. Compute the mean and standard deviation of these z scores. EE Click the icon to view the data table. & Tests Pulse Rates lan Compute the z-scores for all the students. Complete the table Student z-score Student ook Student 1 Student 6D Student Student 1 Student 2 Student 3 Student 4 Student 5 Student 6 Student 7 Student...
TO Wuston Hop The accompanying data represent the pulse rates (beats per minute) of nine students. Treat the nine students as a population. Compute the z-scores for all the students Compute the mean and standard deviation of these Z-scores. Click the icon to view the datatable. Pulse Rates Compute the z-scores for all the students. Complete the table. Student -core Student 2-core Student 1 Student 6 Student 2 Student 7 Student 3 Student 4 Students (Round to the nearest hundredth...
Use the accompanying data set on the pulse rates (in beats per minute) of males to complete parts (a) and (b) below. LOADING... Click the icon to view the pulse rates of males. a. Find the mean and standard deviation, and verify that the pulse rates have a distribution that is roughly normal. The mean of the pulse rates is 71.7 beats per minute. (Round to one decimal place as needed.) The standard deviation of the pulse rates is 12.2...
Listed below are pulse rates (beats per minute) from samples of adult males and females. Find the mean and median for each of the two samples and then compare the two sets of results. Does there appear to be a difference? Male: 67 54 54 86 77 55 62 61 64 57 59 88 63 76 69 Female: 90 79 87 88 68 63 93 87 87 84 66 89 72 89 74 Find the means. The mean for males...
Listed below are pulse rates (beats per minute) from samples of adult males and females. Find the mean and median for each of the two samples and then compare the two sets of results. Does there appear to be a difference? Male: 67 54 54 86 77 55 62 61 64 57 59 88 63 76 69 Female: 90 79 87 88 68 63 93 87 87 84 66 89 72 89 74 Find the means. The mean for males...