shelbyo7252 shelbyo7252

06-06-2023
Mathematics

contestada

Nationwide, the average salary for public school teachers for a specific year was reported to be $52,485 with a standard deviation of $5504. A random sample of 50 public school teacher in Iowa had a mean salary of $50,680. Is there sufficient evidence at the 0.05 level of significance to conclude that the mean salary in Iowa differs from the national average?
Show all 5 steps.

Respuesta :

Otras preguntas

#1. Why is DNA called the blueprint for life? A. It has the code to make carbohydrates. B. It stands for Director of New Activities. C. It has directions for ma

The city council allocates funds for road repair. Which of the following circumstances would be a positive externality? A. Citizens spend less money repairing p

On what grounds did the US Supreme Court refuse to hear the 1831 Cherokee Nation v. Georgia case? A-The court declared that Georgia was ri

Which of the following federal law enforcement agencies does not operate under the Department of the Treasury? A. The Secret Service B. The Drug Enforcement Age

Many small city-states developed in ancient Greece largely because __________. A. the peoples of Greece came from different cultures / B.the peoples of Greece w

Which statement best describes US involvement in the Korean Peninsula today? A) The United States has withdrawn all of its troops from the region and left North

How does the United States' GDP compare with the rest of the world? A.It is proportionate to all other countries. B.It is smaller than most other countries. C.I

Which vitamin prevents rickets and is formed from the sun’s ultraviolet rays? Vitamin A Vitamin K Vitamin D Vitamin B

Which of the following sentence best describes a buffer? A. Buffer is A substance that resists small change in the acidity of a solution when an acid or base is

There are 7 more girls than boys in a class. There are 23 students in the class in all how many girls are there in the class. What are the unknowns in this prob