Question

A data set lists weights​ (lb) of plastic discarded by households. The highest weight is5.25​lb, the mean of all of the weights is x =1.822​lb, and the standard deviation of the weights is s=1.128lb.

a. What is the difference between the weight of 5.25lb and the mean of the​ weights?

b. How many standard deviations is that​ [the difference found in part​ (a)]?

c. Convert the weight of 5.25lb to a z score.

d. If we consider weights that convert to z scores between−2 and 2 to be neither significantly low nor significantly​ high, is the weight of5.25 lb​ significant?

a. The difference is _____lb.

​(Type an integer or a decimal. Do not​ round.)

b. The difference is____standard deviations.

​(Round to two decimal places as​ needed.)

c. The z score is z=?.

​(Round to two decimal places as​ needed.)

d. The highest weight is?

a:significantly low

b not significant

c significantly high

▼

Answer 1