Discuss NAHQ CPHQ Exam Topic 2 Question 24

The following represents two samples of five hospitals' hysterectomy rates per 1,000 women aged 40-60 years of age:

Rates Mean Standard Deviation

Sample A 3, 5, 7, 8, 5 5.6 1.8

Sample B 4, 5, 6, 7, 5 5.4 1.1

In analyzing this information, it can be concluded that:

ASample A has more variability than Sample B

BSample A's performance is superior to Sample B's

CThere are more cases in Sample B

DThere is a data collection error in Sample B

Suggested Answer: A

Get Premium CPHQ Questions as Interactive Web-Based Practice Test or PDF Real Exam Format Detailed Explanations Instant Access Get Your Practice Test

14 comments · newest first

Shay 11 months ago

I thought there might be more cases in Sample B, but it looks like that's not true!

Moira 12 months ago

Sample B has a lower standard deviation, which means it's more consistent.

Rosenda 12 months ago

Wait, how can we say Sample A is superior? The means are so close!

Sabra 12 months ago

Totally agree, Sample A's variability is definitely greater!

Gilma 1 year ago

Sample A has a higher standard deviation, so more variability for sure.

Yuette 1 year ago

I don't recall anything about data collection errors in Sample B; it seems like the rates are just slightly lower.

Chantell 1 year ago

I feel like we had a similar question in practice about comparing hospital rates, and I think the variability was key to understanding the differences.

Micaela 1 year ago

I'm not entirely sure, but I think the mean isn't the only factor to consider when determining which sample is better.

Maynard 1 year ago

I remember we discussed how to interpret standard deviation, and Sample A definitely has a higher one, indicating more variability.

Lizette 1 year ago

Ah, I remember learning about the AMP solution in class. I believe the 3 approaches are prevent, detect, and respond. Let me double-check the options to confirm.

Vanna 1 year ago

Hmm, I'm a bit unsure about the differences between some of these characteristics. I'll need to think through them carefully.

Norah 1 year ago

Okay, let me think this through. Operating leverage, days' sales in accounts receivables, and inventory turnover are all good indicators of operational efficiency. Residual income is more of a profitability measure, so that's the one that doesn't fit.

Laticia 1 year ago

I've got this! Incremental projects have 5 distinct phases. I'm confident that's the right answer.

Merilyn 1 year ago

Okay, I think I've got this. The problem is likely that the load balancer isn't properly handling session persistence, so the user's session is getting lost when their computer is rebooted. I'll check option B first.

NAHQ CPHQ Exam - Topic 2 Question 24 Discussion