A company selling licenses for new e-commerce computer software advertises that firms using this software obtain, on average during the first year, a yield their initial investments. A random sample of 10 of these franchises produced the yields shown below for the first year of operation. 6.8 9.7 11.9 8.8 12.4 5.7 8.2 10.7 9.8 8.6 D Assuming that population yields are normally distributed, test the company's claim at the 5% significance level. Click the icon to view the upper critical values of the Student's t distribution. * PU O A. Reject Ho if ->tn-1,a x- Ho O B. Reject H if < - tn - 1,a s/ yn x- Ho C. Reject Ho if s/ yn x- Ho < ---1a/2 0or reject Ho if > tn- 1,a/2 s/ yn Determine the value(s) for -tn- 1g, th-1g, or ±t,-1g/2 as appropriate for this test.

A company selling licenses for new e-commerce computer software advertises that firms using this software obtain, on average during the first year, a yield their initial investments. A random sample of 10 of these franchises produced the yields shown below for the first year of operation. 6.8 9.7 11.9 8.8 12.4 5.7 8.2 10.7 9.8 8.6 D Assuming that population yields are normally distributed, test the company's claim at the 5% significance level. Click the icon to view the upper critical values of the Student's t distribution. * PU O A. Reject Ho if ->tn-1,a x- Ho O B. Reject H if < - tn - 1,a s/ yn x- Ho C. Reject Ho if s/ yn x- Ho < ---1a/2 0or reject Ho if > tn- 1,a/2 s/ yn Determine the value(s) for -tn- 1g, th-1g, or ±t,-1g/2 as appropriate for this test.

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Description: decision statistic? A company selling licenses for new e-commerce computer software advertises that firms using this software obtain, on average during the first year, a yield of 12% ontheir initial investments. A random sample of 10 of these franchi

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Concept explainers

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.

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Question

decision statistic?

A company selling licenses for new e-commerce computer software advertises that firms using this software obtain, on average during the first year, a yield of 12% on
their initial investments. A random sample of 10 of these franchises produced the yields shown below for the first year of operation.
6.8
9.7
11.9
8.8
12.4
5.7
8.2
10.7
9.8
8.6
Assuming that population yields are normally distributed, test the company's claim at the 5% significance level.
Click the icon to view the upper critical values of the Student's t distribution.
PO
A. Reject H, if
>tn
- 1,0
s/ yn
X- Ho
B. Reject Ho if
s/ yn
- tn - 1,a
く
メーP0
>tn - 1,a/ 2
s/ yn
X- HO
C. Reject H, if
s/ yn
<- n - 1,a/2 or reject H, if
Determine the value(s) for - t,n – 1.a» tn – 1.g• or ±tn- 1.g/2 as appropriate for this test.
- 2.26, + 2.26
(Round to two decimal places as needed. Use a comma to separate answers as needed.)
Calculate the decision statistic.
×ーPO
(Round to two decimal places as needed.)
s/ yn

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