Chapter PIII, Problem 36RE

(a)

To determine

To find: there might be the kind of bias that researchers say in polls.

Explanation of Solution

Barone argues that there is non-response bias in the surveys because this bias is less of a concern if both groups are assumed to respond at the very same rate. The conservatives tend than other classes to fail to participate.

(b)

To determine

To find: the population for the provided surveys.

Explanation of Solution

It has bias-related material. It has different types of respondents and different kinds of surveys issued. In the United States, the demographic for these polls is all adults.

(c)

To determine

To find: that makes these findings think that they are incomplete.

Explanation of Solution

It assumes that the result given is incomplete because the total columns do not add up to 100% and the lack of knowledge is that differences are too big to be due to rounding.

(d)

To determine

To Explain: the meaning of not statistically significant.

Explanation of Solution

The few researchers note that there is no statistically significant difference between the opinions expressed in the two surveys. l In this case, the statistically not relevant means difference of sizes and there is no bias and the differences observed are equivalent to the difference that might have been observed simply due to normal variability sampling,