Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
Which treatment(s) would you recommend to reduce a fever for this population? Describe the association you see in your scatterplot.
Discuss the nature of the current database. What variables were analyzed? Summarize your descriptive statistics findings from Excel.
Discuss how your sample size may affect the validity of your project. (80-100 words). Include citation.
MAT 510 - Business Statistics: Construct 95 percent confidence interval for the difference between proportions of service contracts sold on treadmills vs bikes.
How many of the students surveyed play chess? What question about the population of students at the state college would this table attempt to answer?
Be able to explain the concepts of statistical inference, and apply these to confidence intervals and tests of hypotheses;
List and discuss 2 qualitative attributes of the menu choices of the restaurant that X may want to explore with potential customers.
What the mean and standard deviation (SD) of the Close column in your data set? What are Quartile 1, Quartile 2, and Quartile 3 in this data set?
10 materials samples have been tested, with their Yield Strengths being recorded. This data is available on Blackboard, along with a script to load the data.
Explain what the independent variable in the study was and explain what the dependent variable(s) in the study was/were.
You are a consultant hired to review the instructional staff at the local community college.
Describe the advantages and disadvantages of each. How would you teach students about displaying data?
Analyze the attached primary data using SPSS. Descriptive and inferential statistical analysis what's required.
Can a confidence interval obtained for estimating a population parameter be used to reject the null hypothesis? If your answer is yes, explain how.
Describe why the Chi-squared tests of the types mentioned above are always right-tailed hypothesis testing problems.
Determine the equation of the least squares regression line and explain the regression equation.
You are interested in knowing if there is a statistical difference in driving speeds between Day 1 and Day 10. Which statistical test would be appropriate? Why?
A sample of 16 items for the second population showed a mean of 94 and a standard deviation of 8. Use the .05 significant levels.
Relationship between variables: Chi-square, Spearman's rho, Pearson's r-Comparing means and statistical significance (t-test, ANOVA test).
Build a logistic regression model to predict which students will leave/return to Holmes University for their sophomore year.
The analysis for the quantitative data must use the below 3 tests. Test for Differences (t-test and ANOVA). Test for Association (Correlation Analysis)
Develop a 95% confidence interval for the population mean. Develop a 90% confidence interval for the population mean.
a.) Find the probability of no failures in 6,000 hours of operation. b.) Find the variance and the standard deviation for this random variable.
A panel of admissions counselors for a college are interested in determining which predictors are the best in predicting college success (College_GPA.sav).
A person's critical flicker frequency is the highest frequency at which he or she can detect that a light source is flickering.