Amy is making a cookie recipe which uses 1/2 teaspoon of sugar per batch. She wants to make 5 batches. How many teaspoons of sug
2 answers:
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bearing in mind that parallel lines have the same exact slope, then any parallel line to the one above will have the same slope as that one.
Answer:
atleast 385
Step-by-step explanation:
Given that an electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricity, they would like know the mean daily power usage for homes there.
Population std deviation =
Sample size =
STd error of sample mean =
Margin of error for 95% would be Critical value ( std error)
Here since population std dev is known we can use Z critical value= 1.96
Sample size should be atleast 385