Question

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 416 gram setting. It is believed that the machine is overfilling the bags. A 39 bag sample had a mean of 423 grams. Assume the population standard deviation is known to be 25. Is there sufficient evidence at the 0.050 level that the bags are overfilled?

Step 1 of 6:

State the null and alternative hypotheses.

Step 2. Enter the value of the z test statistic.

Step 3. Specify if the test is one-tailed or two-tailed.

Step 4. Enter the P value of the z test statistic.

Step 5. Enter the value of the level of significance.

Step 6. Enter the conclusion.

Answer 1