Question to be reviewed again: At Au & Associates,employees tends to suffer from

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Question to be reviewed again:        At Au & Associates,employees tends to suffer from frequent insomnia. My brotherclaimed to have invented a magic potion to cure them of the dreadsleep disorder. Ten randomly selected employees are given thepotion for testing. Below please find a table of the numberof extra hours of sleep these "guinea pigs" enjoyed after takingthe potion. 1.9 0.8 1.1 0.1 -0.1 4.4 5.5 1.6 4.6 3.4     a. What is a 95%confidence interval estimate of the extra hours of sleep these ,employees, enjoyed after taking the magic potion?
   b. Based on the result from part (a), does the magic potionwork? Explain. This question needs a step-step workingplease.... Question to be reviewed again:        At Au & Associates,employees tends to suffer from frequent insomnia. My brotherclaimed to have invented a magic potion to cure them of the dreadsleep disorder. Ten randomly selected employees are given thepotion for testing. Below please find a table of the numberof extra hours of sleep these "guinea pigs" enjoyed after takingthe potion. 1.9 0.8 1.1 0.1 -0.1 4.4 5.5 1.6 4.6 3.4     a. What is a 95%confidence interval estimate of the extra hours of sleep these ,employees, enjoyed after taking the magic potion?
   b. Based on the result from part (a), does the magic potionwork? Explain. This question needs a step-step workingplease.... This question needs a step-step workingplease.... 1.9 0.8 1.1 0.1 -0.1 4.4 5.5 1.6 4.6 3.4

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   Thank you so much , your answer was almostsimilar to mines, but i got stuck some where, but with your workingit has helped me. Thank you.

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