Suppose a chef claims that her meatball weight is not equal

Last updated: 8/22/2023

Suppose a chef claims that her meatball weight is not equal to 4 ounces on average Several of her customers do not believe her so the chef decides to do a hypothesis test at a 10 significance level to persuade them She cooks 13 meatballs The mean weight of the sample meatballs is 3 9 ounces The chef knows from experience that the standard deviation for her meatball weight is 0 6 ounces Ho 4 Ha 174 0 1 significance level What is the test statistic z score of this one mean hypothesis test rounded to two decimal places Provide your answer below Toot