Your job is to monitor the quality control process at a plan…

Your job is to monitor the quality control process at a plant that produces slabs of plastic used in the retail markets.  You randomly sample 160 slabs from the production line.  There are 30 slabs with defects.  Round to 3 decimal places as needed. a) What is the point estimate of the parameter? [a] b) What is the standard error? [b]

A bakery makes some awesome cupcakes.  The baker believes th…

A bakery makes some awesome cupcakes.  The baker believes that 88 grams of frosting is used on these cupcakes.  Customers believe it is more than that.  The customers perform an experiment.  They sample 20 cupcakes and find the average amount of frosting to be 91 grams with a standard deviation of 5 grams.  Use a significance level of 0.05.   Use mu for

40% of American workers did not pursue higher education.  60…

40% of American workers did not pursue higher education.  60 workers were selected at random.  You are only interested on if they pursed higher ed or not.  d is worth 4 points.  round to 3 decimals as needed. a) What type of distribution is this? [a] b) What is the probability that exactly 20 workers did not pursue higher education? [b] c) What is the probability that at most  30 workers did not pursue higher education? [c] d) What is the probability that at least 28 workers did not pursue higher education? [d]