Consider a value to be significantly low if its z score less than or equal to minus2or consider a value to be significantly high if its z score is greater than or equal to 2.a test is used to assess readiness for college. in a recent year, the mean test score was 20.1and the standard deviation was 5.1.identify the test scores that are significantly low or significantly high. what test scores are significantly low

Skychefs, inc. prepares in-flight meals for a number of major airlines. one of the company's products is grilled salmon in dill sauce with baby new potatoes and spring vegetables. during the most recent week, the company prepared 4000 of these meals using 960 direct labor hours. the company paid these direct labor workers a total of $19,200 for this work, or $20.00 per hour. according to standard cost card for this meal, it should require 0.25 direct labour-hours at a cost of $19.75 per hour.1. what is the standard labor-hours allowed (sh) to prepare 4,000 meals? 2. what is the standard labor cost allowed (sh x sr) to prepare 4,000 meals? 3. what is the labor spending variance? 4. what is the labor rate variance and the labor efficiency variance?