Step 1 of 7: State the null and alternative hypotheses Step 2 of 7: Find the value of the test statistic. Round your answer to two decimal places. Step 3 of 7: Specify if the test is one-tailed or two-tailed. Step 4 of 7: Determine the P-value of the test statistic. Round your answer to four decimal places. Step 5 of 7: Identify the value of the level of significance. Step 6 of 7: Make the decision to reject or fail to reject the null hypothesis.
A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 432 gram setting. It is believed that the machine is underfilling or overfilling the bags. A 44 bag sample had a mean of 428 grams. Assume the population standard deviation is known to be 26. Is there sufficient evidence at the 0.05 level that the bags are underfilled or overfilled?
Step 1 of 7:
State the null and alternative hypotheses
Step 2 of 7:
Find the value of the test statistic. Round your answer to two decimal places.
Step 3 of 7:
Specify if the test is one-tailed or two-tailed.
Step 4 of 7:
Determine the P-value of the test statistic. Round your answer to four decimal places.
Step 5 of 7:
Identify the value of the level of significance.
Step 6 of 7:
Make the decision to reject or fail to reject the null hypothesis.
Step by step
Solved in 2 steps with 5 images
