# Question: Trader Joe s is a privately held chain of specialty grocery

Trader Joe's is a privately held chain of specialty grocery stores in the United States. Starting out as a small chain of convenience stores, it has expanded to over 340 stores as of June 2010 (http://Traderjoe.com). It has developed a reputation as a unique grocery store selling products such as gourmet foods, beer and wine, bread, nuts, cereal, and coffee. One of their best-selling nuts is Raw California Almonds, which are priced at $4.49 for 16 ounces. Since it is impossible to pack exactly 16 ounces in each packet, a researcher has determined that the weight of almonds in each packet is normally distributed with a mean and a standard deviation equal to 16.01 ounces and 0.08 ounces, respectively.

a. Discuss the sampling distribution of the sample mean based on any given sample size.

b. find the probability that a random sample of 20 bags of almonds will average less than 16 ounces.

c. Suppose your cereal recipe calls for no less than 48 ounces of almonds. What is the probability that three packets of almonds will meet your requirement?

a. Discuss the sampling distribution of the sample mean based on any given sample size.

b. find the probability that a random sample of 20 bags of almonds will average less than 16 ounces.

c. Suppose your cereal recipe calls for no less than 48 ounces of almonds. What is the probability that three packets of almonds will meet your requirement?

## Relevant Questions

Georgia residents spent an average of $470.73 on the lottery in 2010, or 1% of their personal income (http://www.msn.com, May 23, 2012). Suppose the amount spent on the lottery follows a normal distribution with a standard ...The producer of a particular brand of soup claims that its sodium content is 50% less than that of its competitor. The food label states that the sodium content measures 410 milligrams per serving. Assume the population of ...Hockey pucks used by the National Hockey League (NHL) and other professional leagues weigh an average of 163 grams (5.75 ounces). A quality inspector monitors the manufacturing process for hockey pucks. She takes eight ...An article in the National Geographic News (“U.S. Racking Up Huge Sleep Debt,” February 24, 2005) argues that Americans are increasingly skimping on their sleep. A researcher in a small mid-western town wants to estimate ...We use the t distribution for the statistical inference of the population mean when the underlying population standard deviation is not known. Under the assumption that the population is normally distributed, find tα/2,df ...Post your question