Solved

A PC Company Uses Two Suppliers for Rechargeable Batteries for Its

Question 24

Essay

A PC company uses two suppliers for rechargeable batteries for its notebook computers.Two factors are important quality features of the batteries: mean use time and variation.It is desirable that the mean use time be high and the variability be low.Recently,the PC maker conducted a test on batteries from the two suppliers.In the test,9 randomly selected batteries from Supplier 1 were tested and 12 randomly selected batteries from Supplier 2 were tested.The following results were observed:
Supplier 1 Supplier 2
n1 = 9 n2 = 12 A PC company uses two suppliers for rechargeable batteries for its notebook computers.Two factors are important quality features of the batteries: mean use time and variation.It is desirable that the mean use time be high and the variability be low.Recently,the PC maker conducted a test on batteries from the two suppliers.In the test,9 randomly selected batteries from Supplier 1 were tested and 12 randomly selected batteries from Supplier 2 were tested.The following results were observed: Supplier 1 Supplier 2 n<sub>1</sub> = 9 n<sub>2</sub> = 12 <sub>1</sub> = 67.25 min. <sub>2</sub> = 72.4 min. S<sub>1</sub>= 11.2 min S<sub>2</sub> = 9.9 min Based on these sample results,can the PC maker conclude that a difference exists between the two batteries with respect to the population mean use time? Test using a 0.10 level of significance. 1 = 67.25 min. A PC company uses two suppliers for rechargeable batteries for its notebook computers.Two factors are important quality features of the batteries: mean use time and variation.It is desirable that the mean use time be high and the variability be low.Recently,the PC maker conducted a test on batteries from the two suppliers.In the test,9 randomly selected batteries from Supplier 1 were tested and 12 randomly selected batteries from Supplier 2 were tested.The following results were observed: Supplier 1 Supplier 2 n<sub>1</sub> = 9 n<sub>2</sub> = 12 <sub>1</sub> = 67.25 min. <sub>2</sub> = 72.4 min. S<sub>1</sub>= 11.2 min S<sub>2</sub> = 9.9 min Based on these sample results,can the PC maker conclude that a difference exists between the two batteries with respect to the population mean use time? Test using a 0.10 level of significance. 2 = 72.4 min.
S1= 11.2 min S2 = 9.9 min
Based on these sample results,can the PC maker conclude that a difference exists between the two batteries with respect to the population mean use time? Test using a 0.10 level of significance.

Correct Answer:

verifed

Verified

This test calls for us to test whether t...

View Answer

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q16: A hypothesis test for the difference between

Q19: You are given the following results of

Q20: The NCAA is interested in estimating the

Q21: A pet food producer manufactures and then

Q26: The NCAA is interested in estimating the

Q28: The following samples are observations taken from

Q42: In estimating the difference between two population

Q69: When conducting a hypothesis test to determine

Q70: When performing a hypothesis test for the

Q121: In comparing two populations using paired differences,