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NLMB7633
12.08.2020 •
Mathematics
will give brainliest A student is assessing the correlation between the number of workers in a factory and the number of units produced daily. The table shows the data: GRAPH IS LOCATED IN PICTURES! Part A: Is there any correlation between the number of workers in a factory and the number of units produced daily? Justify your answer. (4 points) Part B: Write a function that best fits the data. (3 points) Part C: What does the slope and y-intercept of the plot indicate? (3 points)
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Ответ:
Step-by-step explanation:
Sample proportion p is the proportion of favourable numbers to total number in the sample
By central limit theorem and also approximation of binomial to normal , we have sample proportion for large number of samples will be normal
with mean = sample proportion
and std deviation =![\sqrt{\frac{pq}{n} }](/tpl/images/0447/9290/62966.png)
Thus we find standard deviation of proportion sample is inversely proportional to the square of the sample size n.
It follows automatically that as sample size increases std deviation decreases.
Here from 80 sample size was made to 200
So std deviation would decrease automatically