# barcode font reporting services Tests of Hypotheses and Significance in Software Making QR Code in Software Tests of Hypotheses and Significance

CHAPTER 7 Tests of Hypotheses and Significance
Decode QR Code JIS X 0510 In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
QR Code 2d Barcode Generator In None
Using Barcode creator for Software Control to generate, create QR Code ISO/IEC18004 image in Software applications.
We take as our decision rule: (1) The claim is not legitimate if Z is less than 2.33 (in which case we reject H0).
Recognizing QR Code 2d Barcode In None
QR Code JIS X 0510 Generation In Visual C#.NET
Using Barcode creation for .NET Control to generate, create QR Code image in VS .NET applications.
(2) Otherwise, the claim is legitimate, and the observed results are due to chance (in which case we accept H0). !npq !(200)(0.9)(0.1) 4.23. If H0 is true, m np 200(0.9) 180 and s Now 160 in standard units is (160 180) > 4.23 4.73, which is much less than 2.33. Thus by our decision rule we conclude that the claim is not legitimate and that the sample results are highly significant (see end of Problem 7.5). (b) The P value of the test is P(Z 4.73) < 0, which shows that the claim is almost certainly false. That is, if H0 were true, it is almost certain that a random sample of 200 allergy sufferers who used the medicine would include more than 160 people who found relief.
QR-Code Creator In .NET Framework
Using Barcode creation for ASP.NET Control to generate, create QR Code ISO/IEC18004 image in ASP.NET applications.
Denso QR Bar Code Creator In .NET
Using Barcode creator for .NET framework Control to generate, create QR Code image in VS .NET applications.
7.7. The mean lifetime of a sample of 100 fluorescent light bulbs produced by a company is computed to be 1570 hours with a standard deviation of 120 hours. If m is the mean lifetime of all the bulbs produced by the company, test the hypothesis m 1600 hours against the alternative hypothesis m 2 1600 hours, using a level of significance of (a) 0.05 and (b) 0.01. (c) Find the P value of the test.
Encode QR-Code In Visual Basic .NET
Using Barcode drawer for .NET framework Control to generate, create Quick Response Code image in Visual Studio .NET applications.
UPCA Creator In None
Using Barcode drawer for Software Control to generate, create GS1 - 12 image in Software applications.
We must decide between the two hypotheses H0: m 1600 hours H1: m 2 1600 hours
EAN-13 Encoder In None
Using Barcode creation for Software Control to generate, create GTIN - 13 image in Software applications.
Encode GS1-128 In None
Using Barcode generation for Software Control to generate, create GTIN - 128 image in Software applications.
A two-tailed test should be used here since m 2 1600 includes values both larger and smaller than 1600. (a) For a two-tailed test at a level of significance of 0.05, we have the following decision rule: (1) Reject H0 if the z score of the sample mean is outside the range (2) Accept H0 (or withhold any decision) otherwise. 1.96 to 1.96.
Code 3/9 Drawer In None
Using Barcode generator for Software Control to generate, create Code 39 image in Software applications.
Create DataMatrix In None
Using Barcode printer for Software Control to generate, create Data Matrix ECC200 image in Software applications.
# The statistic under consideration is the sample mean X. The sampling distribution of X has a mean mX m and standard deviation sX s> !n, where m and s are the mean and standard deviation of the population of all bulbs produced by the company. Under the hypothesis H0, we have m 1600 and sX s> !n 120> !100 12, using the sample # standard deviation as an estimate of s. Since Z (X 1600)>12 (1570 1600)>12 2.50 lies outside the range 1.96 to 1.96, we reject H0 at a 0.05 level of significance.
ISSN Creation In None
Using Barcode generation for Software Control to generate, create ISSN - 10 image in Software applications.
Code 128C Creator In Objective-C
Using Barcode encoder for iPhone Control to generate, create Code 128C image in iPhone applications.
(b) If the level of significance is 0.01, the range 1.96 to 1.96 in the decision rule of part (a) is replaced by 2.58 to 2.58. Then since the z score of 2.50 lies inside this range, we accept H0 (or withhold any decision) at a 0.01 level of significance. (c) The P value of the two-tailed test is P(Z 2.50) P(Z 2.50) 0.0124, which is the probability that a mean lifetime of less than 1570 hours or more than 1630 hours would occur by chance if H0 were true.
Decode Code-39 In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
Scan Code 128 Code Set A In Visual Studio .NET
Using Barcode scanner for .NET Control to read, scan read, scan image in .NET framework applications.
7.8. In Problem 7.7 test the hypothesis m 1600 hours against the alternative hypothesis m a level of significance of (a) 0.05, (b) 0.01. (c) Find the P value of the test.
Barcode Encoder In Objective-C
Using Barcode generation for iPhone Control to generate, create bar code image in iPhone applications.
Scan Barcode In Visual Basic .NET