A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 426426 gram setting. Based on a 1313 bag sample where the mean is 433433 grams and the standard deviation is 2929, is there sufficient evidence at the 0.050.05 level that the bags are overfilled? Assume the population distribution is approximately normal.

Step2of5:

Find the value of the test statistic. Round your answer to three decimal places.