Statistical analysis of the data is: required by professional associations. used to in order to interpret the data. required to torture research methods students. a waste of time when we already know the truth. used make a study more credible.

The distribution of heights of 19 -year-old women is approximately normal, with a mean of 170 cm and a standard deviation of 5 cm . a What percentage of these women have heights: i between 155 and 185 cm ? ii greater than 180 cm ? iii between 160 and 175 cm ? b In a sample of 5000 of these women, approximately how many have heights greater than 175 cm ?

Complete the statement below. point estimate confidence interval critical value the value of a statistic that estimates the value of a parameter. confidence level

Which of the following is/are part of descriptive statistics? central tendency. variability. linear regression. correlation. all of the above.

24. What is the \( y \)-intercept of the trend line equation, and what does it mean in the context of the situation?

Classifying subjects on the basis of gender is an example of what kind of measurement scale? nominal. ordinal. interval. discrete. continuous.