The average weight of airline food packaging material needs to be controlled so that the total...

The average weight of airline food packaging material needs to be controlled so that the total weight of the catering supplies does not exceed a desired limit. The material should weigh no more than 250 grams. If the weight is too heavy, then different packaging material will need to be ordered. A random sample of n= 100 shows the sample mean to be 259 grams with a known population standard deviation (sigma) of 50 grams.

(1 pt.) Write out Ho and Ha.

(1 pt.) Discuss the meaning of Type I and Type II error. Use words that describe the actions that will be taken (or not) in your answer (rather than just using notation of Ho or Ha).

(1 pt.) Using MegaStat, calculate the p-value and attach your output sheet printout.

(1 pt.) Can we reject Ho at the .01 significance level? CAREFULLY EXPLAIN WHY OR WHY NOT. Can we be 99% confident that the packaging material weighs more than 250 grams?

Expert Solution

orchestra answered 1 year ago

1. An airline is interested in knowing the average weight of the carry-on baggage for its...

1. An airline is interested in knowing the average weight of the carry-on baggage for its customers. Historically, the average weight for carry-on baggage was 15.5 pounds (lbs.), but the airline believes that the average has since increased. A sample of 30 customers was gathered, and it was determined that the average weight for the carry-on baggage for these customers was 16.8 lbs. with a standard deviation of 4.1 lbs. a.If you were to create a confidence interval for the...

A packaging system fills boxes to an average weight of 17 ounces with a standard deviation...

A packaging system fills boxes to an average weight of 17 ounces with a standard deviation of 0.5 ounce. It is reasonable to assume that the weights are normally distributed. Calculate the 1st, 2nd, and 3rd quartiles of the box weight. (You may find it useful to reference the z table. Round "z" value to 3 decimal places and final answers to 2 decimal places.) 1st Quartile= 2nd Quartile= 3rd Quartile=

A certain pen has been designed so that true average writing lifetime under controlled conditions (involving...

A certain pen has been designed so that true average writing lifetime under controlled conditions (involving the use of a writing machine) is at least 10 hours. A random sample of 20 pens is selected, the writing lifetime of each is determined, and a normal probability plot of the resulting data supports the use of a one-sample t test. (a) What hypotheses should be tested if the investigators believe a priori that the design specification has been satisfied? (b) What...

Pick two items each from the 4 risk-weight categories of assets (so 8 items in total)...

Pick two items each from the 4 risk-weight categories of assets (so 8 items in total) and explain why they receive that particular weighting. What do you believe has been the biggest plus and the biggest minus of the effects of technology on the banking industry? (Please support each answer with examples)

Question