Author Question: The produce manager for a large retail grocery store believes that an average head of lettuce weighs ... (Read 114 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?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

For a complete list of videos, visit our video library