We wish to test the null hypothesis that students who do not know the answer guess at random on a particular multiple choice item. For the 4 incorrect alternatives, the choices for a random sample of 24 students were (1) 3; (2) 9; (3) 2; (4) 10. The expected frequency for alternative (2) is

A null hypothesis with a one-sample test can be formulated with a <, > or ≠Group of answer choicesTrueFalse

A student is taking a multiple choice test consisting of five questions, each with four options for each question. The student selects the answers at random.a) What is the probability that the student will get at least one question correct?b) Calculate the expected number of questions correct.

A student did not study and has to guess on each question of a 20 question multiple choice test.  There are four answer choices for each question.

A student believes that the average grade on the quiz in Math is greater than 85. She plans on taking a sample to test her belief. The correct null hypothesis is Group of answer choicesPopulation mean is greater than or equal to 85Population mean is less than or equal to 85Population mean is less than 85Population mean is greater than 85

There is a need to test a hypothesis.Group of answer choicesTrueFalse