Determine the upper and lower control-chart limits

Assignment Help Applied Statistics

Reference no: EM131411854

Problem 1 -

Zipper Products, Inc., produces granola cereal, granola bars, and other natural food products. Its granola cereal is sampled to ensure proper weight. Each sample contains eight boxes of cereal. The overall average for the samples is 17 ounces. The range is only 0.5 ounce. Determine the upper and lower control-chart limits for averages for the boxes of cereal.

Problem 2 -

Sampling four pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours has produced the following results:

HOUR	x^-	R	HOUR	x^-	R
1	3.25"	0.71"	13	3.11"	0.85"
2	3.10	1.18	14	2.83	1.31
3	3.22	1.43	15	3.12	1.06
4	3.39	1.26	16	2.84	0.50
5	3.07	1.17	17	2.86	1.43
6	2.86	0.32	18	2.74	1.29
7	3.05	0.53	19	3.41	1.61
8	2.65	1.13	20	2.89	1.09
9	3.02	0.71	21	2.65	1.08
10	2.85	1.33	22	3.28	0.46
11	2.83	1.17	23	2.94	1.58
12	2.97	0.40	24	2.64	0.97

Develop appropriate control limits and determine whether there is any cause for concern in the cutting process.

Reference no: EM131411854

Questions Cloud

Determine the percentage of the computers in the store : In a computer store, 30% (.3) of the computers in stock are laptops and 70% (.7) are desktops.- Use a tree diagram to determine the percentage of the computers in the store that are on sale.

What is the dividend yield : What is the dividend yield for each of these four stocks? What is the expected capital gains yield? Discuss the relationship among the various returns that you find for each of these stocks.

What is the alpha of security a : Security A has an expected rate of return of 15.50% and a beta of 2.15.The risk-free rate is 2.25% and the market risk premium is 6.75%. What is the alpha of security A?

What is the conditional probability : What is the conditional probability that a randomly selected customer would order a biscotti, given that he or she orders coffee?

Determine the upper and lower control-chart limits : Zipper Products, Inc., produces granola cereal, granola bars, and other natural food products. Its granola cereal is sampled to ensure proper weight. Determine the upper and lower control-chart limits for averages for the boxes of cereal

What is the average inventory held during the year : Cheeseburger and Taco Company purchases 19,186 boxes of cheese each year. It costs $18 to place and ship each order and $5.47 per year for each box held as inventory. The company is using Economic Order Quantity model in placing the orders. What i..

What is the probability that they pick the same number : Two students each use a random number generator to pick an integer between 1 and 7. What is the probability that they pick the same number?

Find the probability that the first card is an ace : A standard poker deck of cards contains 52 cards of which four are aces.- Find the probability that the first card is an ace and the second card is not an ace.

Few trends could so thoroughly undermine very foundations : Milton Friedman argued that "few trends could so thoroughly undermine the very foundations of our free society as the acceptance by corporate officials of a social responsibility other than to make as much money for their stockholders as possible." W..

User Account

All Pages