Author Question: The produce manager for a large retail grocery store believes that an average head of lettuce weighs ... (Read 127 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?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

For a complete list of videos, visit our video library