Ch 5: "accuracy" of parameter estimates

[mine-cetinkaya-rundel]

I'm not sure if accuracy is the right word here, as opposed to precision, or both.

In discussing confidence intervals we talk about accuracy with regards to confidence levels, and precision with regards to magnitude of the margin of error. I think we mean both here so how about instead of

https://github.com/OpenIntroOrg/openintro-statistics/blob/b7e661929a25ca0f7fb530139e1c5aa015f1f459/ch_foundations_for_inf/TeX/ch_inference_for_props.tex#L6

we say

accuracy and precision of parameter estimates?

[OpenIntroOrg]

These spots have now been revised to be more careful on this wording.