A machine that dispenses orange juice is considered to be working properly if th

Question

A machine that dispenses orange juice is considered to be working properly if the average amount dispensed is 190 ml. A random sample of 8 bottles had a mean of 189.89. The 90% confidence interval was determined to be (189.26, 190.52).

Note: These are all multiple choice, just select the correct answer to its corresponding number.

Ex. (1) Asnwer...etc

(a) Is there any evidence to indicate that the machine is NOT working properly?

(1) No, the value 190 is in the confidence interval.

(2) No, the value 189.89 is in the confidence interval.

(3) Yes, the value 190 is in the confidence interval.

(4) Yes, the value 189.89 is in the confidence interval.

(b) In this situation, we used the 90% Confidence Interval to conduct the significance test. What significance (alpha) level would be associated with this test?

(1) 0.01

(2) 0.05

(3) 0.10

(4) 0.90

(c) This is a one-sided test.

(1) True

(2) False   

Explanation / Answer

1) Option A is Correct. (1) No, the value 190 is in the confidence interval.

2) Option C is Correct. 0.10

3) False

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