Author Question: The produce manager for a large retail grocery store believes that an average head of lettuce weighs ... (Read 129 times)

LaDunn

  • Hero Member
  • *****
  • Posts: 526
The produce manager for a large retail grocery store believes that an average head of lettuce weighs more than 1.7 pounds. If she were to test this statistically, what would the null and alternative hypotheses be and what is the research hypothesis?
 
  What will be an ideal response?

Question 2

Arrivals to a bank automated teller machine (ATM) are distributed according to a Poisson distribution with a mean equal to three per 15 minutes.What is the probability that fewer than four customers will arrive in a 30-minute segment?
 
  A) 0.1512
  B) 0.1889
  C) 0.2515
  D) 0.2576



akpaschal

  • Sr. Member
  • ****
  • Posts: 342
Answer to Question 1

In this case, the manager wants to show that the mean weight of a head of lettuce exceeds 1.7 pounds, this will be the research hypothesis. The research hypothesis is the claim that we wish to prove. Thus, we would set up the following null and alternative hypotheses:
H0 :   1.7
H1 :  >1.7
Note that the null and alternative hypotheses are stated in terms of , the population mean, and that the null hypothesis contains the equality. The research hypothesis is the alternative hypothesis. If the sample data lead us to reject the null, we will have evidence to suggest that the mean weight of lettuce exceeds 1.7 pounds.

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

For a complete list of videos, visit our video library