Solution-Set up the null and alternative hypotheses for the

Set up the null and alternative hypotheses for the test

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Reference no: EM131555572

When bonding? teeth, orthodontists must maintain a dry field. A new bonding adhesive has been developed to eliminate the necessity of a dry field.? However, there is concern that the new bonding adhesive is not as strong as the current? standard, a composite adhesive. Tests on a sample of 9 extracted teeth bonded with the new adhesive resulted in a mean breaking strength? (after 24? hours) of x overbar =4.57 Mpa and a standard deviation of s =0.34Mpa. Orthodontists want to know if the true mean breaking strength is less than 5.18 ?Mpa, the mean breaking strength of the composite adhesive.

Set up the null and alternative hypotheses for the test.
Next find the rejection region for the test using a =0.01.
Compute the test statistic. t= (round to two decimals)
Give the appropriate conclusion for the test.
What conditions are required for the test results to be? valid?

Reference no: EM131555572

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Set up the null and alternative hypotheses for the test

Reference no: EM131555572

Reference no: EM131555572

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