A sample of 20 two-year-old chickens shows that they lay an average of 21 eggs per month. The standard deviation of the sample was 2 eggs. Find the 99% confidence interval of the true mean.
Z D/2 = 2.86

step-by-step explanation:

use context clues to figure out the meaning of the bolded word:  

the sage gardener knew when she had to water her plants.  

question 8 options:

mint plant

wise

happy

lazy

step-by-step explanation:

a.for lorena 14 hours makes $126   for 16 hours she makes 144

for julie 6 hours makes $72 for 21 hours its $252

b. julie makes more money than lorena julie makes $12 an hour and lorena makes $9  

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