question archive 1) It is claimed that the new bulb will have a mean life time of less than 450 hours
1) It is claimed that the new bulb will have a mean life time of less than 450 hours
Subject:ChemistryPrice: Bought3
1) It is claimed that the new bulb will have a mean life time
of less than 450 hours. A random sample of 60 bulbs is selected and placed on life test. The mean and standard deviation are found to be 455 hours and 15 hours, respectively
a) Perform the appropriate test of hypothesis to test the claim at 4% level of significance.
b) Find the pvalue for this test
2) It is claimed that the new bulb will have a mean life time of less
than 450 hours. A random sample of 60 bulbs is selected and placed on life test. The mean and standard deviation are found to be 455 hours and 15 hours, respectively
a) Perform the appropriate test of hypothesis to test the claim at 4% level of significance.
b) Find the pvalue for this test
