Blog

According to this frequency table that describes students’ scores on a quiz, what percent of students scored an A (9/10 or 10/10)?

For the following  transaction provided and select the appropriate journal entry. Oct 6.     Purchased supplies on account for $4,300.

For which of the following situations, would post hoc testing be necessary?

When an investigator sets a level of significance (α), they are setting a standard that will determine:

A researcher plans a study to examine the effects of an exercise intervention on resting heart rate. He randomly assigns subjects to receive either an intervention with a personal trainer, an intervention in a group aerobics class, or no exercise intervention. After 6 months, he measures subjects’ resting heart rates and wants to compare the means heart rates of the three groups. What type of statistical test would be most appropriate to analyze the data?

A researcher studied how much time parents spent playing with their children with disabilities. The dependent variable was amount of time playing. The independent variables were disability status of the child (no disability, physical disability, or mental disability) and the gender of the parent (male or female). After collecting data, the researcher ran a Two-Way ANOVA. Using the standard 0.05 level of significance, according to the following SPSS output, what effect would you want to investigate further using a post hoc analysis?  

An investigator is studying the effect of a new growth hormone injection on height of boys with short stature. He has the boys come into the clinic every 6 months to have their height measured precisely on a calibrated stadiometer. Height is an example of what type of variable?

An investigator’s research hypothesis is: There will be a difference in work satisfaction between nurses who have a fixed schedule and nurses who have a rotating shift schedule. Using the standard level of significance (0.05), which conclusion would you make from the following SPSS output?

A researcher used a t-test for independent samples to compare the difference in social extroversion between women who had children and women who had no children. Based on the following SPSS output, what does the circled p value (p=0.287) tell you?

Which measure of central tendency can be reported with all levels of data (nominal, ordinal, interval/ratio)?