A process that produces bottles of shampoo, when operating correctly


A process that produces bottles of shampoo, when operating correctly, produces bottles whose contents weight, on average, 20 ounces. A random sample of nine bottles from a single production run yields the following content weights in ounces


21.4 19.7 19.7 20.6 20.820.1 19.7 20.3 20.9


Assuming that the population distribution is normal:


(a)Test at the 5% level against a two-sided alternative the null hypothesis that the process is operating correctly. (Again, use the P-value method.)


(b)Test at a 10% level of significance that the mean is greater than 20 ounces. (Use the P-value method.)


Calculate your essay price
(550 words)

Approximate price: $22

How it Works


It only takes a couple of minutes to fill in your details, select the type of paper you need (essay, term paper, etc.), give us all necessary information regarding your assignment.


Once we receive your request, one of our customer support representatives will contact you within 24 hours with more specific information about how much it'll cost for this particular project.


After receiving payment confirmation via PayPal or credit card – we begin working on your detailed outline, which is based on the requirements given by yourself upon ordering.


Once approved, your order is complete and will be emailed directly to the email address provided before payment was made!