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4. Compute for the value of the Formula: test statistic (Zcomputed) using Formula: z=- the data from the population and the sample/s. Given: I1-9.1 S1-19 S2-2.1 n1-120 n2 - Substitute the given to the formula and solve: 5. Make a decision. Decision: (Reject Ho and Accept Ha or Accept Ho and Reject Ha) 6. State the conclusion Conclusion:

4. Compute for the value of the Formula: test statistic (Zcomputed) using Formula: z=- the data from the population and the sample/s. Given: I1-9.1 S1-19 S2-2.1 n1-120 n2 - Substitute the given to the formula and solve: 5. Make a decision. Decision: (Reject Ho and Accept Ha or Accept Ho and Reject Ha) 6. State the conclusion Conclusion:

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 21E
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Instructions: Complete the table by following the steps and procedures in Hypothesis Testing.

The average lifetime of 120 Brand X Alkaline AA batteries and 120 Brand Y alkaline AA batteries were found to be 9.1 hours and 9.6 hours respectively. Suppose the standard deviations of lifetimes are 1.9 for Brand X batteries and 2.1 hours for Brand Y batteries, test the hypothesis using α = 0.05

HYPOTHESIS TESTING 1. Formulate the null and the Ho: The average lifespan of alternative hypotheses brand X Alkaline AA and Y Alkaline AA are equal. In symbol: Ho: 41 = H2 На: In symbol: Ha: H < H2 2. Specify the following: A. Level of Significance A. a = 0.05 B. Types of Hypothesis Testing B. one-tailed test (left tailed) [one-tailed test (left-tailed or right-tailed) or a two-tailed test) 3. Specify the following: A. The test statistic to be used.A. (z-test: one sample mean or z- test: two sample means) B. The critical or tabular value (Zcritical). (Can be found on the given table of Tabular value of Z) B.
Transcribed Image Text:HYPOTHESIS TESTING 1. Formulate the null and the Ho: The average lifespan of alternative hypotheses brand X Alkaline AA and Y Alkaline AA are equal. In symbol: Ho: 41 = H2 На: In symbol: Ha: H < H2 2. Specify the following: A. Level of Significance A. a = 0.05 B. Types of Hypothesis Testing B. one-tailed test (left tailed) [one-tailed test (left-tailed or right-tailed) or a two-tailed test) 3. Specify the following: A. The test statistic to be used.A. (z-test: one sample mean or z- test: two sample means) B. The critical or tabular value (Zcritical). (Can be found on the given table of Tabular value of Z) B.
4. Compute for the value of the Formula: test statistic (Zcomputed) using Formula: z= I1 - X the data from the population and the sample/s. Given: X1 - 9.1 S1-1.9 S2- 2.1 n1-120 n2 -. Substitute the given to the formula and solve: 5. Make a decision. Decision: (Reject Ho and Accept Ha or Accept Ho and Reject Ha) 6. State the conclusion Conclusion:
Transcribed Image Text:4. Compute for the value of the Formula: test statistic (Zcomputed) using Formula: z= I1 - X the data from the population and the sample/s. Given: X1 - 9.1 S1-1.9 S2- 2.1 n1-120 n2 -. Substitute the given to the formula and solve: 5. Make a decision. Decision: (Reject Ho and Accept Ha or Accept Ho and Reject Ha) 6. State the conclusion Conclusion:
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