Consider the following sample: 13, 18, 19, 20, 27.13, 18, 19, 20, 27. A) The sample standard deviation s = (Round the standard deviation to 4 decimal places). B) The z-score of 27 is (Round the z-score to 4 decima

Consider the following sample: 13, 18, 19, 20, 27.13, 18, 19, 20, 27. A) The sample standard deviation s = (Round the standard deviation to 4 decimal places). B) The z-score of 27 is (Round the z-score to 4 decima

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Consider the following sample: 13, 18, 19, 20, 27.13, 18, 19, 20, 27.

A) The sample standard deviation s =
(Round the standard deviation to 4 decimal places).

B) The z-score of 27 is
(Round the z-score to 4 decimal places).

C) is he sample data 27 Unsual (or Significant)OR Usual (or Not-Significant)

Expert Solution

Step 1

For the given sample, the sample standard deviation is,

s=4.7422, from the excel function, =STDEV.S(O18:O27)

Sample mean, M=19.4, from the excel function, =AVERAGE(O18:O27)

Z score of 27

$z s c o r e = \frac{27 - M}{s} = \frac{27 - 19.4}{4.7422} = 1.6026$

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