Author Question: A report noted that for the population of 9th graders, one-third of the students are unable to pass ... (Read 34 times)

NClaborn

  • Hero Member
  • *****
  • Posts: 560
A report noted that for the population of 9th graders, one-third of the students are unable to pass a quiz in basic geography. One teacher, having spent a great deal of time on geography instruction, gave the same quiz to a group of n = 72. Only X = 18 students in the group did not pass the test. The teacher would like to know if the number of students in this class who failed the quiz is significantly different from the general population. For this test, what is the z-score corresponding to X = 18?
 
  A) z = 0.375
  B) z = -1.00
  C) z = -1.50
  D) z = 2.00

Question 2

A researcher obtains t = 2.35 for a repeated-measures study using a sample of n = 8 participants. Based on this t value, what is the correct decision for a two-tailed test?
 
  A) Reject the null hypothesis with  = .05 but not with  = .01.
  B) Reject the null hypothesis with either  = .05 or  = .01.
  C) Fail to reject the null hypothesis with either  = .05 or  = .01.
  D) Change  to  = .10.



leahm14

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

C

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

For a complete list of videos, visit our video library