Monica has 4 boxes to place in an empty carton the mass of each box is 4.5 kilograms the mass of the carton is 500 grams what is
2 answers:
Total mass in grams of the carton and the 4 boxes is 18.5 kg .
<u>Step-by-step explanation:</u>
Here we have , Monica has 4 boxes to place in an empty carton the mass of each box is 4.5 kilograms the mass of the carton is 500 grams.
We need to find the total mass in grams of the carton and the 4 boxes . Let's find out:
Total mass = Mass of 4 boxes + Mass of empty carton
Mass of 1 box = 4.5 kg
Mass of 4 boxes =
Mass of 4 boxes =
Mass of empty carton = = 0.5 kg
⇒ Total mass = Mass of 4 boxes + Mass of empty carton
⇒ Total mass =
⇒ Total mass =
Therefore, total mass in grams of the carton and the 4 boxes is 18.5 kg.
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Answer:
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Part 2)
Step-by-step explanation:
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Part 2) Determine g(f(x))
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For x=5
Answer:
D)Yes, because the difference in the means in the actual experiment was more than two standard deviations from 0.
Step-by-step explanation:
We will test the hypothesis on the difference between means.
We have a sample 1 with mean M1=18.2 (drug group) and a sample 2 with mean M2=15.9 (no-drug group).
Then, the difference between means is:
If the standard deviation of the differences of the sample means of the two groups was 1.1 days, the t-statistic can be calculated as:
The critical value for a two tailed test with confidence of 95% (level of significance of 0.05) is t=z=1.96, assuming a large sample.
This is approximately 2 standards deviation (z=2).
The test statistict=2.09 is bigger than the critical value and lies in the rejection region, so the effect is significant. The null hypothesis would be rejected: the difference between means is significant.