Celia has a bag of tennis balls and baseballs. there are 12 tennis balls and 5 baseballs. celia gave her sister 3 tennis balls. celia's sister already had 6 tennis balls. how many balls are left in celia's bag?
a. how many tennis balls does celia's sister have now?
b. how many tennis balls does celia have left in her bag?
c. how many balls did celia give to her sister altogether?
d. how many tennis balls and baseballs combined does celia have in her bag now?

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e. g. 98.76543).