A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 410 gram setting. It is believed that the machine is underfilling the bags. A 37 bag sample had a mean of 405 grams. Assume the population standard deviation is known to be 23. Is there sufficient evidence at the 0.02 level that the bags are underfilled?
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.
Get Answers For Free
Most questions answered within 1 hours.