CNR N4000: DR. CHELLY TUFTS BEVEL
NURSING PACKET COMPREHENSIVE
STUDY GUIDE 2026 FULL QUESTIONS AND
SOLUTIONS GRADED A+
◍ behavior of sample proportion.
Answer: mean of sampling distribution: pSD: larger n --> smaller SDnormal
approximation valid if: np≥10 n(1-p)≥10
◍ Interpreting confidence intervals.
Answer: We are C% confident that the interval from ___ to ___ captures the
true population parameter
◍ what is the corresponding z-value for the order quantity of 26,000 toys.
Answer: 1z/26,000-20,000=1.00/6,000
◍ dependent variable.
Answer: response variable, outcome you are interested in explaining
◍ Measures of Center (central tendency).
Answer: values that describe a set of data by identifying a position in the
center of the data set. The three most common measures of central tendency
are mean, median, and mode.When the mean, median, and mode are all the
same, the graph will be symmetrical.
◍ good experiment requirements.
Answer: 1. randomized2. controlled3. double-blind
◍ Conclusions based on P-values.
Answer: p-value less than alpha level, reject the null hypothesisp-value
greater than alpha, fail to reject the null hypothesis
, ◍ selection bias.
Answer: sample doesn't represent population
◍ histogram interpretation.
Answer: shape (skewed, symmetric?)centerspreadoutliersmodality
(peakedness)
◍ behavior of sample mean.
Answer: mean of sampling distribution: µSD of sample mean: σ/√nsmaller
n=more biasmultiple samples: smaller n --> larger SD
◍ explanatory v. response.
Answer: x explainsy responds
◍ Ex. In a survey, students report their level of programming knowledge by
choosing 0 if they have none, 1 if they have some, and 2 if they are
proficient. A professor wants to know whether prior programming
knowledge has any relation to the final letter grade in the class. What do you
use.
Answer: contingency table
◍ meaning of z-score.
Answer: number of SDs an observation is from the mean
◍ what is the corresponding z-value for the order quantity of 18,000 toys?.
Answer: -0.33z=1800-20000=-0.33/6000
◍ 1, 2, 3, 4, 5, 6, 7, 1000What is the mean? median?which is better at
describing the numbers?.
Answer: Mean: 128.5Median: 4.5Median because it is a better
representation of the data
◍ types of probability.
Answer: theoretical (classical)empirical (observed)
◍ control group.
Answer: placebono treatmentethical issues may prevent using one
◍ Way to analyze symmetry, sewed, modes.
NURSING PACKET COMPREHENSIVE
STUDY GUIDE 2026 FULL QUESTIONS AND
SOLUTIONS GRADED A+
◍ behavior of sample proportion.
Answer: mean of sampling distribution: pSD: larger n --> smaller SDnormal
approximation valid if: np≥10 n(1-p)≥10
◍ Interpreting confidence intervals.
Answer: We are C% confident that the interval from ___ to ___ captures the
true population parameter
◍ what is the corresponding z-value for the order quantity of 26,000 toys.
Answer: 1z/26,000-20,000=1.00/6,000
◍ dependent variable.
Answer: response variable, outcome you are interested in explaining
◍ Measures of Center (central tendency).
Answer: values that describe a set of data by identifying a position in the
center of the data set. The three most common measures of central tendency
are mean, median, and mode.When the mean, median, and mode are all the
same, the graph will be symmetrical.
◍ good experiment requirements.
Answer: 1. randomized2. controlled3. double-blind
◍ Conclusions based on P-values.
Answer: p-value less than alpha level, reject the null hypothesisp-value
greater than alpha, fail to reject the null hypothesis
, ◍ selection bias.
Answer: sample doesn't represent population
◍ histogram interpretation.
Answer: shape (skewed, symmetric?)centerspreadoutliersmodality
(peakedness)
◍ behavior of sample mean.
Answer: mean of sampling distribution: µSD of sample mean: σ/√nsmaller
n=more biasmultiple samples: smaller n --> larger SD
◍ explanatory v. response.
Answer: x explainsy responds
◍ Ex. In a survey, students report their level of programming knowledge by
choosing 0 if they have none, 1 if they have some, and 2 if they are
proficient. A professor wants to know whether prior programming
knowledge has any relation to the final letter grade in the class. What do you
use.
Answer: contingency table
◍ meaning of z-score.
Answer: number of SDs an observation is from the mean
◍ what is the corresponding z-value for the order quantity of 18,000 toys?.
Answer: -0.33z=1800-20000=-0.33/6000
◍ 1, 2, 3, 4, 5, 6, 7, 1000What is the mean? median?which is better at
describing the numbers?.
Answer: Mean: 128.5Median: 4.5Median because it is a better
representation of the data
◍ types of probability.
Answer: theoretical (classical)empirical (observed)
◍ control group.
Answer: placebono treatmentethical issues may prevent using one
◍ Way to analyze symmetry, sewed, modes.
