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Essay Available:
Pages:
1 page/β‰ˆ275 words
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1 Source
Style:
APA
Subject:
Mathematics & Economics
Type:
Essay
Language:
English (U.S.)
Document:
MS Word
Date:
Total cost:
$ 4.32
Topic:

Statistics - sampling

Essay Instructions:
Measure your pulse rate for one minute and post your rate in a discussion board message. You need to do this at the very beginning of the module and then return later to use this data to answer the following questions. Please note: All students in the class should be considered the population. -Compute the population means pulse rate. -Obtain a simple random sample of n=4 students (select from the initial discussion board messages containing pulse rates) and compute the sample mean. Does the sample mean equal the population mean?. -Obtain a second simple random sample of n=4 students and compute the sample mean. Does the sample mean equal the population mean? -Are the sample means the same? Why?
Essay Sample Content Preview:
Statistics: sampling Name Institution Date of submission The population mean pulse rate Using a population of ten students, the following results are obtained; 54.5,59,66,72.1,57,58,70,62,60,61.2. The populations mean pulse rate is computed as follows;  QUOTE   = 61.98 Obtain a simple random sample of n= 4 students (select from the initial discussion board messages containing pulse rates) and compute the sample mean. Does the sample mean equal the populations mean? When I obtain a simple random sample of n=4 students i.e. 54.5, 66, 57, 62; The sample mean will be  QUOTE  =59.875 The sample mean is not exactly equal to the population mean because there is a marginal difference of 2.105. Obtain a second simple random sample of n=4 students and compute the sample mean. Does the sample mean equal the populations mean?Β  When I obtain a second random sample of n=4 students i.e. 59, 72.1, 61.2, 58 The sample mean will be  QUOTE  = 62.575 The sample mean is not exactly equal to the population mean because there is a marginal difference of 0.595. Are the sample means the same? Why?Β  The sample means are not the same. The difference may be brought about by selecting...
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