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4. The inventor of a new kind of light bulb claims that all such bours

4. The inventor of a new kind of light bulb claims that all such bours

Mathematics For Machine Technology
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter29: Tolerance, Clearance, And Interference
Section: Chapter Questions
Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...
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Formulate a null hypothesis and its alternative hypothesis for each of the following. Write them in words and in symbols.
3. The mean performance of all grade six leavers of a school in the NAT is 35. 4. The inventor of a new kind of light bulb claims that all such bulbs last as long as 3000 hours. 5. The average age of all the identified stratum of senior citizens in a remote area is 92 years.
Transcribed Image Text:3. The mean performance of all grade six leavers of a school in the NAT is 35. 4. The inventor of a new kind of light bulb claims that all such bulbs last as long as 3000 hours. 5. The average age of all the identified stratum of senior citizens in a remote area is 92 years.
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