The image shows a ray of light bending at the boundary of a glass block. according to a law of optics, = n, where n is a constant. which equation states the same law in terms of a and b?

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.