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1. A company, which makes battery-operated cars, claims that its products have a mean life span of 5 years with a standard deviation of 10 years. If a random sample of 40 toy cars was tested and found to have a life mean of only 4 years. Test if the sample is a representation of the population at level of significance. Step 1: State the hypotheses. Step 2: The level of significance, one/two-tailed test, degrees of freedom Step 3: Statistical Test Step 4: Computation Step 5: Decision Rule Step 6: Reject Ho or Failed to Reject Ho Step 7: Conclusion

1. A company, which makes battery-operated cars, claims that its products have a mean life span of 5 years with a standard deviation of 10 years. If a random sample of 40 toy cars was tested and found to have a life mean of only 4 years. Test if the sample is a representation of the population at level of significance. Step 1: State the hypotheses. Step 2: The level of significance, one/two-tailed test, degrees of freedom Step 3: Statistical Test Step 4: Computation Step 5: Decision Rule Step 6: Reject Ho or Failed to Reject Ho Step 7: Conclusion

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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1. A company, which makes battery-operated cars, claims that its products have a mean life span of 5 years with a standard deviation of 10 years. If a random sample of 40 toy cars was tested and found to have a life mean of only 4 years. Test if the sample is a representation of the population at level of significance. Step 1: State the hypotheses. Step 2: The level of significance, one/two-tailed test, degrees of freedom Step 3: Statistical Test Step 4: Computation Step 5: Decision Rule Step 6: Reject Ho or Failed to Reject Ho Step 7: Conclusion
Transcribed Image Text:1. A company, which makes battery-operated cars, claims that its products have a mean life span of 5 years with a standard deviation of 10 years. If a random sample of 40 toy cars was tested and found to have a life mean of only 4 years. Test if the sample is a representation of the population at level of significance. Step 1: State the hypotheses. Step 2: The level of significance, one/two-tailed test, degrees of freedom Step 3: Statistical Test Step 4: Computation Step 5: Decision Rule Step 6: Reject Ho or Failed to Reject Ho Step 7: Conclusion
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