If you put 5 things in your mouth and take 3 out and put them in another hole, how much things are inside of you?
2 answers:
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Answer:
Step-by-step explanation:
Given that in order to efficiently bid on a contract, a contractor wants to be 95% confident that his error is less than two hours in estimating the average time it takes to install tile flooring.
Std deviation =4.5 errors
95% confidence interval = Mean±1.96*std dev
Hence we have
Sample size should be 20.
Answer:
1. yes
2. yes
3. no
4. no
Step-by-step explanation:
Replace x by each value of x.
1. yes
2. yes
3. no
4. no (this is not a solution because the value must be greater than 44 not equal to)