Exam 15: Nonparametric Statistics: The Chi-Square Test

Chi-square tests are designed to determine whether an observed frequency differs from

A consumer psychologist was testing a new coffee blend. She randomly chose 230 people to try a taste of three samples (Sample A, Sample B, and Sample C). The results were that 98 people chose Sample A, 42 people chose Sample B, and 90 chose Sample C. -The derived chi-square value for this problem is

A statistician in a small town wishes to determine if persons treated for an accident involving a joint injury were more likely to go to an orthopedist or a chiropractor. In the small town, there is only one orthopedist and one chiropractor. The orthopedist saw 118 people for joint injuries in one year. The chiropractor saw 83. -The conclusion for this problem would be

A psychologist wanted to determine what was more important in the choice of a spouse: love or money. The psychologist surveyed 290 unmarried psychology students and asked them whether they would choose a prospective mate based on love or money. The professor was also interested to see if the choice would vary by gender. The professor found that 68 men preferred a spouse based on love, 33 men preferred a spouse based on money, 79 women preferred a spouse based on love, and 110 women preferred a spouse based on money. -The expected cell frequency for the men who preferred a spouse for love is

A psychologist wanted to determine what was more important in the choice of a spouse: love or money. The psychologist surveyed 290 unmarried psychology students and asked them whether they would choose a prospective mate based on love or money. The professor was also interested to see if the choice would vary by gender. The professor found that 68 men preferred a spouse based on love, 33 men preferred a spouse based on money, 79 women preferred a spouse based on love, and 110 women preferred a spouse based on money. -The conclusion for this problem would be

A nonparametric statistical test has _____ power compared to a parametric statistical test.

A psychologist wanted to determine what was more important in the choice of a spouse: love or money. The psychologist surveyed 290 unmarried psychology students and asked them whether they would choose a prospective mate based on love or money. The professor was also interested to see if the choice would vary by gender. The professor found that 68 men preferred a spouse based on love, 33 men preferred a spouse based on money, 79 women preferred a spouse based on love, and 110 women preferred a spouse based on money. -The degrees of freedom for this chi-square problem are

A psychologist wanted to determine what was more important in the choice of a spouse: love or money. The psychologist surveyed 290 unmarried psychology students and asked them whether they would choose a prospective mate based on love or money. The professor was also interested to see if the choice would vary by gender. The professor found that 68 men preferred a spouse based on love, 33 men preferred a spouse based on money, 79 women preferred a spouse based on love, and 110 women preferred a spouse based on money. -The derived chi-square value for this problem is

The degrees of freedom for this chi-square problem are

A psychologist wanted to determine what was more important in the choice of a spouse: love or money. The psychologist surveyed 290 unmarried psychology students and asked them whether they would choose a prospective mate based on love or money. The professor was also interested to see if the choice would vary by gender. The professor found that 68 men preferred a spouse based on love, 33 men preferred a spouse based on money, 79 women preferred a spouse based on love, and 110 women preferred a spouse based on money. -The degrees of freedom for this chi-square problem are

A consumer psychologist was testing a new coffee blend. She randomly chose 230 people to try a taste of three samples (Sample A, Sample B, and Sample C). The results were that 98 people chose Sample A, 42 people chose Sample B, and 90 chose Sample C. -The degrees of freedom for this chi-square problem are

A psychologist wanted to determine what was more important in the choice of a spouse: love or money. The psychologist surveyed 290 unmarried psychology students and asked them whether they would choose a prospective mate based on love or money. The professor was also interested to see if the choice would vary by gender. The professor found that 68 men preferred a spouse based on love, 33 men preferred a spouse based on money, 79 women preferred a spouse based on love, and 110 women preferred a spouse based on money. -The expected cell frequency for the people living after atherectomy is

A psychologist wanted to determine what was more important in the choice of a spouse: love or money. The psychologist surveyed 290 unmarried psychology students and asked them whether they would choose a prospective mate based on love or money. The professor was also interested to see if the choice would vary by gender. The professor found that 68 men preferred a spouse based on love, 33 men preferred a spouse based on money, 79 women preferred a spouse based on love, and 110 women preferred a spouse based on money. -The derived chi-square value for this problem is

Which of the following is not an assumption of the chi-square test?

A statistician in a small town wishes to determine if persons treated for an accident involving a joint injury were more likely to go to an orthopedist or a chiropractor. In the small town, there is only one orthopedist and one chiropractor. The orthopedist saw 118 people for joint injuries in one year. The chiropractor saw 83. -The derived chi-square value for this problem is

A consumer psychologist was testing a new coffee blend. She randomly chose 230 people to try a taste of three samples (Sample A, Sample B, and Sample C). The results were that 98 people chose Sample A, 42 people chose Sample B, and 90 chose Sample C. -The conclusion for this problem would be

A psychologist wanted to determine what was more important in the choice of a spouse: love or money. The psychologist surveyed 290 unmarried psychology students and asked them whether they would choose a prospective mate based on love or money. The professor was also interested to see if the choice would vary by gender. The professor found that 68 men preferred a spouse based on love, 33 men preferred a spouse based on money, 79 women preferred a spouse based on love, and 110 women preferred a spouse based on money. -The critical value of the chi-square for this problem at p = .05 is

A psychologist wanted to determine what was more important in the choice of a spouse: love or money. The psychologist surveyed 290 unmarried psychology students and asked them whether they would choose a prospective mate based on love or money. The professor was also interested to see if the choice would vary by gender. The professor found that 68 men preferred a spouse based on love, 33 men preferred a spouse based on money, 79 women preferred a spouse based on love, and 110 women preferred a spouse based on money. -The conclusion for this problem would be

A chi-square test can be similar to a factorial ANOVA in that it can analyze two or more __________ at once.

Karl Pearson originally called the chi-square test a