Question 4 According to a University Center for Logistics Management, \( 9 \% \) of all merchandise sold in the United States gets returned. A Seattle department store sampled 85 items sold in January and found that 5 of the items were returned. If you have the following null and alternative hypotheses for a test you are running: \( H_{0}: p=0.09 \) \( H_{a}: p>0.09 \) Calculate the test statistic, rounded to 3 decimal places \( z=\square \)

For an experiment comparing more than two treatment conditions or more than two groups, you should use analysis of variance (ANOVA), rather than separate \( t \) tests. True False

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

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 ?

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

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