Determine if there are patterns of either excellence or lack

Assignment Help Basic Statistics

Reference no: EM137823

1. Colleges conduct student evaluations of instruction to determine if there are patterns of either excellence or the lack thereof by their instructors. These can have a large impact on tenure and promotion decisions at many institutions. One particular instructor had ratings in 3 courses in one semester as given by the table below (5 is agree strongly to 1 is disagree strongly) for the statement "The instructor is an excellent teacher."

961_determine if there are patterns of either excellence or the lack.jpg

The P-value for the χ2 test is
A. more than 0.10.
B. between 0.05 and 0.10.
C. less than 0.05.

2. Colleges conduct student evaluations of instruction to determine if there are patterns of either excellence or the lack thereof by their instructors. These can have a large impact on tenure and promotion decisions at many institutions. One particular instructor had ratings in 3 courses in one semester as given by the table below (5 is agree strongly to 1 is disagree strongly) for the statement "The instructor is an excellent teacher."

961_determine if there are patterns of either excellence or the lack.jpg

In a test of no association between these variables, we are really studying a model of
A. independence.
B. comparing several populations.
C. Neither choice is correct.

3. We are interested in comparing the proportions of males and females who think earning a large salary is very important to them. I surveyed 200 of each gender and recorded their answers to the question as "yes" or "no." If I analyze the data with both a z test for two proportions and a χ2 test of no association, the P-value for the z test
A. will be less than for the χ2 test.
B. will be the same as for the χ2 test.
C. will be more than for the χ2 test.

Reference no: EM137823

Questions Cloud

Technological improvements in bicycle : What point on the graph is most likely to result from the introduction of technological improvements in bicycle assembly, and successful publicity campaigns by the government on the virtues of bicycling to work.

Find out the velocity of m1 : A small but measurable current of 1.2*10^-10 A exists in a copper wire whose diameter is 2.5mm compute the current density and the electron drift speed.

Roma was a schoolteacher : Roma was a schoolteacher and earned $40,000. But she enjoys creating cartoons, so at the beginning of 2003, Roma quit teaching.

Find the electric field between them and surface charge : The parallel metal plate of a capacitor is detached by a distance of 0.5cm and is connected to a 90v battery. Find the electric field between them and surface charge density on the plate.

Determine if there are patterns of either excellence or lack : These can have a large impact on tenure and promotion decisions at many institutions. One particular instructor had ratings in 3 courses in one semester as given by the table below for the statement "The instructor is an excellent teacher.

Cross-price elasticity of demand : What do you think the sign and magnitude of the Cross-Price Elasticity of Demand would be between premium juices and soda.

Assume that it is constant throughout the trip : How much work did the movers do (horizontally) pushing a 150- crate 10.2 across a rough floor without acceleration, if an effective coefficient of friction was 0.50.

Enrich understanding of international economics : How can the issue, perspective, concept or model enhance and enrich understanding of International Economics.

What is the horizontal distance airplane engine falls : Vector A points in the negative y direction and has a magnitude of 3 units. Vector B has three times the magnitude and points in the positive x direction. Find out the direction and magnitude of the following vectors.

User Account

All Pages