Suppose a chef claims that her meatball weight is less than

Last updated: 9/1/2023

Suppose a chef claims that her meatball weight is less than 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 14 meatballs The mean weight of the sample meatballs is 3 7 ounces The chef knows from experience that the standard deviation for her meatball weight is 0 5 ounces Ho 4 H 4 a 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