on a scale drawing, the scale is inch = 1 foot. What are the dimensions on the scale drawing for a room that is 15 feet by 16 fe
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Answer:
The sample size is
Step-by-step explanation:
From the question we are told that
The sample standard deviation is
The mean difference of the two groups is
The standard error is
=>
Let assume that the confidence level is 95% hence the level of significance is
=>
So the critical value of obtained from the normal distribution table is
Generally the margin of error is mathematically evaluated as
Generally the sample size is mathematically represented as
=>
=>
Answer:
-2/3
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