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1. You're designing a survey to assess employee satisfaction. Provide a question that will produce:
a. Nominal data
b. Ordinal data
c. Interval data
d. Ratio data
2. Develop five demographic questions to measure gender, age, years of experience, level of education, and ethnicity.
Identify if the data that would be collected from the question as:
a. Qualitative or quantitative
b. Level of measurement
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
A medical research project examined the relationship between the subject's weight and recovery time from surgical procedure, as shown in the table below.
Describe the data appear the strength of the relationship among variables is sufficient to warrant using linear regression forecasting.
What is the null and alternative hypothesis? What is your final conclusion?
Generate a 95% confidence interval for the true mean total cholesterol levels in children.
We are interested in testing to see if the variance of a population is less than 7. The correct null hypothesis is:
Compute Cronbach's alpha on the scale provided on pp. 710-711 of the Field text using the SAQ.sav file.
Determine for each variable if it is the explanatory variable, the response variable, or whether it could be both.
The researcher in exercise decides to conduct the same study using a within - participates design to control for differences in cognitive ability.
Administrators at a university are planning to offer a summer seminar. It costs $3000 to reserve a room, hire an instructor, and bring in the equipment. Assume it costs $25 per student for the administrators to provide the course materials.
The diameters of oranges in a certain orchard are normally distributed with a mean of 5.26 inches and a standard deviation of 0.500 inches.
At 5% level of significance, is there evidence of difference in mean life of bulbs made by the 2 kinds of machines. What is your conclusion?
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