Exam 18: The Binomial Test

arrow
  • Select Tags
search iconSearch Question
flashcardsStudy Flashcards
  • Select Tags

In an ESP experiment,the participants are required to predict the suit of a card drawn randomly from a complete deck.If a participant correctly identifies the suit for 18 out of 48 trials,is the participant performing significantly better than chance? Test at the .05 level of significance.​

(Essay)
4.9/5
(87)

The sign test can be used as an alternative to the independent-measures t test.​

(True/False)
5.0/5
(82)

For a binomial test with p = 1/2 and n = 36,the z-score for X = 21 is z = +1.00.​

(True/False)
5.0/5
(70)

For a sample of n = 20,which of the following p values satisfies the criterion for using the normal approximation?​

(Multiple Choice)
4.9/5
(91)

If pn = 15 and qn = 45,what is the value for p?​

(Multiple Choice)
4.8/5
(79)

For a binomial test,if pn = 10 and qn = 90,then n = 100.​

(True/False)
4.8/5
(90)

In a binomial hypothesis test,the value for μ must always be a whole number (not a fraction or decimal value).​

(True/False)
5.0/5
(77)

The probability of correctly predicting the outcome of a coin toss is p = 1/2.What is the standard deviation of the normal approximation to the binomial distribution for the number of correct predictions in a series of 100 tosses?​

(Multiple Choice)
4.9/5
(90)

A binomial distribution has p = 1/3 and q = 2/3.How large a sample (n)is necessary to satisfy the criterion for using the normal approximation?​

(Multiple Choice)
4.9/5
(83)

What are the mean and standard deviation for the normal approximation to the binomial distribution with n = 100 and p = .20?​

(Multiple Choice)
4.9/5
(78)

Which test is often used for the same kind of research study for which the sign test is appropriate?​

(Multiple Choice)
4.9/5
(87)

For a binomial distribution based on n = 100,the standard deviation would be larger for p = 0.90 than for p = 0.80.​

(True/False)
4.8/5
(81)

What is indicated by zero differences in a sign test?​

(Multiple Choice)
4.9/5
(87)

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?​

(Multiple Choice)
4.7/5
(70)

A local traffic light is set so that it cycles between 30 seconds of red and 30 seconds of green.What is the probability of randomly hitting a red light more than 25 times in n = 40 trips through the intersection?​

(Essay)
4.7/5
(88)
Showing 61 - 75 of 75
close modal

Filters

  • Essay(0)
  • Multiple Choice(0)
  • Short Answer(0)
  • True False(0)
  • Matching(0)