You may need to use the appropriateappendix tableortechnologyto answer this question.A sample of 81 account balances of a credit company showed an average balance of $1,200 with a standard deviation of $129.

(a)Formulate the hypotheses (in dollars) that can be used to determine whether the mean of all account balances is significantly different from $1,140. (Enter != foras needed.)

H₀:

H_a:

(b)Compute the test statistic. (Round your answer to three decimal places.) (c)Using thep-value approach, what is your conclusion? Let= 0.05.

Find thep-value. (Round your answer to four decimal places.)

p-value =

State your conclusion.

-RejectH₀. There is insufficient evidence that the mean balance is significantly different from $1,140.

-Do not rejectH₀. There is insufficient evidence that the mean balance is significantly different from $1,140.

-Do not rejectH₀. There is sufficient evidence that the mean balance is significantly different from $1,140.

-RejectH₀. There is sufficient evidence that the mean balance is significantly different from $1,140.