You work for a company that produces electronics with integrated circuits. One of your products is called a "shift regster." This product is designed to automatically shut down if its operating temperature exceeds 175 degrees Celsius. The manufacturing process has been designed to have a standard deviation of σ=0.4 degrees Celsius. You test a random sample 17 shif registers, and you record the following shut-down ternperatures. Construct a 95% confidence interval for the overall mean shutdown-temperature. (Sum of doto vaibes = 297477 )
a) Find the critical value and σ_5 . Round your answers to 3 decimal places Critical Value