What is the test statistic?
A restaurant wants to know if more people order its “mega meat pizza” or “mammoth vegetable pizza” depending on whether it is a weekend night or a weekday night. The restaurant keeps track of customers’ preference for these two types of pizza (mega meat or mammoth vegetable) and the night of the week it’s ordered (weekend night or weekday night) over 2 weeks. It finds that a total of 150 people ordered one of these pizzas, with 60 ordering mega meat on a weekend night, 20 ordering mega meat on a weekday night, 25 ordering mammoth vegetable on a weekend night, and 45 ordering mammoth vegetable on a weekend night. Conduct the appropriate statistical test to see if there is a difference between the frequencies of customers ordering the two types of pizza. Assume that the expected frequencies are equal, and use an alpha of .05
Ans: 23.47
You might also like to view...
The single-system hypothesis suggests that the bilingual's two languages ____
a. serve a single function with a facilitative effect on cognition b. are represented in a unified cognitive system c. progress toward greater fluency in a unitary manner d. lead to the development of a single system of thought
Josh has begun to exhibit deficiencies in language, interpersonal skills, affective behavior, and intellectual functioning
Most of his symptoms were evident before he was three, and his parents report an increased amount of selfstimulating behavior. It is likely that Josh has been diagnosed as having a. Down Syndrome. b. intellectual disabilities. c. Autism. d. TBI.
A science teacher wants to provide students with practice in the skill of measuring volume. What would be the most appropriate activity?
a. Provide a rectangular block of wood and ask students to measure the length of each side. b. Provide a small rock and ask students to drop the rock into a graduated cylinder that has been partially filled with water, recording the volume before and after the rock was dropped. c. Provide a 1000-ml cylinder and a cup measure and ask students to determine how many cups it takes to fill the cylinder. d. Provide three containers with different shapes, all of which hold the same volume, and ask students which holds the most. e. All of the above f. None of the above
Which of the following deals with the idea set forth by Doyle of classrooms as “complex, tightly populated social structures”?
a. multidimensionality b. simultaneity c. immediacy d. unpredictable and public climate