4. With 90% confidence, for sample mean 326.00, sample standard deviation 14.10, and sample size 35, what is the upper confidence limit with 2 decimal places?

5. Bobo’s Bad Burgers fast food claims you will be in and out in 5 minutes. To test this claim, time in minutes from entering Bobo’s to receiving the order was secretly recorded. The results are documented in the following data:

At a 95% confidence level, does the confidence interval support Bobo’s claims?

a.      The confidence limits (4.77, 6.58) support the claim of 5 minutes. 5 falls in between the confidence limits. Bobos performance meets the expectation.

b.      The confidence limits (6.79,8.56) reject the claim of 5 minutes. 5 is less that the lower confidence limit. Audit of Bobo’s procedures and employees is recommended.

c.      None of the answers match my calculations.

d.      The confidence limits (1.62,3.21) reject the claim of 5 minutes. 5 is greater than the upper confidence limit. Performance at Bobo’s is incredible.

e.      The confidence limits (2.77, 4.54) reject the claim of 5 minutes. 5 is greater than the upper confidence limit. Bobo’s performance is exemplary.

Please help me match the following:

_______ The risk we are willing to take of a type 1 error, or the type 1 error rate

_______ Rejection of H0 when H0 is false, or not rejecting H0 when H0 is true

_______ Failure to reject H0 when H0 is false

_______ Rejection of H0 when H0 is true

1.      Type 1 error

2.      Type 2 error

3.      Not an error

4.      Ax

7. Please help me match the following:

_______ The power of a test = P(rejecting Ho|Ho false)

_______ Test of this hypothesis requires 1-tailed test with lower reject region bounded by negative critical value

_______ Test of this hypothesis requires 2-tailed test with lower reject region bounded by negative critical value and upper reject region bounded by positive critical value.

_______ The probability of a type 2 error

_______ Test of this hypothesis requires 1-tailed test with upper reject region

_______ Reject Ho

1.      Β

2.      1-β

3.      Pvalue < ax

4.      Ho: µ ≤ 0

5.      Ho: µ ≥  0

6.      Ho: µ = 0