Determine if the equation 1/4x= y represents a proportional relationship

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The actual length of side t is 0.045cm. use the scale drawing to find the actual side length of w

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.