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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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CroweN6459 CroweN6459
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4 years ago
Perform the required chi-square hypothesis test. Preliminary data analyses and other information indicate that it is reasonable to assume that the variable under consideration is normally distributed. Use the critical-value approach or the P-value approach as indicated.

A machine dispenses a liquid drug into bottles in such a way that the standard deviation of the contents is 81 milliliters. A new machine is tested on a sample of 24 containers and the standard deviation for this sample group is found to be 26 milliliters. At the 5%  level of significance, do the data provide sufficient evidence to conclude that the standard deviation, σ, of the amounts dispensed by the new machine is less than 81 milliliters? Use the critical-value approach.
Textbook 
Introductory Statistics

Introductory Statistics


Edition: 10th
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samah952samah952
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CroweN6459 Author
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4 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
Holly72492
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Yesterday
Thank you, thank you, thank you!
Shuqin
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2 hours ago
Thanks
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