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Unit 1 Milestone Statistics Fundamentals,100% CORRECT
Examen • 16
pages
• 2020
Researchers want to test the effects of a new weight loss program. They believe that gender is a significant factor. The participants are divided by gender. Then, within each group, participants are randomly assigned to either the treatment or control group.
Which of the following would be the most effective to test the effects of the new weight loss program?
•
A matched-pair design experiment
•
A completely randomized design experiment
•
A randomized block design experim...
Unit 1 Milestone Statistics Fundamentals,100% CORRECT
Dernier document publié:
de cela
Researchers want to test the effects of a new weight loss program. They believe that gender is a significant factor. The participants are divided by gender. Then, within each group, participants are randomly assigned to either the treatment or control group.
Which of the following would be the most effective to test the effects of the new weight loss program?
•
A matched-pair design experiment
•
A completely randomized design experiment
•
A randomized block design experim...
Statistics Fundamentals Unit 2 Challenge 3,100% CORRECT
Examen • 5
pages
• 2020
Which of these statements about a normally distributed data set is FALSE?
• a.)
Mean, median and mode are the same value.
• b.)
It is not symmetric around the center.
• c.)
50% of the values are smaller than the mean value.
• d.)
50% of the values are greater than the mean value.
At a nearby frozen yogurt shop, the mean cost of a pint of frozen yogurt is $1.50 with a standard deviation of $0.10.
Assuming the data is normally distributed, approximately what percent of customer...
Statistics Fundamentals Unit 2 Challenge 3,100% CORRECT
Dernier document publié:
de cela
Which of these statements about a normally distributed data set is FALSE?
• a.)
Mean, median and mode are the same value.
• b.)
It is not symmetric around the center.
• c.)
50% of the values are smaller than the mean value.
• d.)
50% of the values are greater than the mean value.
At a nearby frozen yogurt shop, the mean cost of a pint of frozen yogurt is $1.50 with a standard deviation of $0.10.
Assuming the data is normally distributed, approximately what percent of customer...
Statistics Fundamentals Unit 2 Challenge 2,100% CORRECT
Examen • 7
pages
• 2020
Which term describes the characteristic of each member of a population?
• a.)
Distribution
• b.)
Variable
• c.)
Data set
• d.)
Frequency
Which term below is a number that describes how the data is dispersed across the entire range of data?
• a.)
Shape
• b.)
Center
• c.)
Outlier
• d.)
Spread
Olivia graphed the data she had collected about monthly utility costs. Her graph is below.
Which of the following statements would be a characteristic of Olivia's gr...
Statistics Fundamentals Unit 2 Challenge 2,100% CORRECT
Dernier document publié:
de cela
Which term describes the characteristic of each member of a population?
• a.)
Distribution
• b.)
Variable
• c.)
Data set
• d.)
Frequency
Which term below is a number that describes how the data is dispersed across the entire range of data?
• a.)
Shape
• b.)
Center
• c.)
Outlier
• d.)
Spread
Olivia graphed the data she had collected about monthly utility costs. Her graph is below.
Which of the following statements would be a characteristic of Olivia's gr...
What is NOT assumed before starting an ANOVA test?
• a.)
The population standard deviations are similar.
• b.)
Populations are normally distributed.
• c.)
The population means are the same.
• d.)
The observations are independent and from a random sample.
• c.)Correct.
A one way ANOVA is used to test the differences in population mean values. So we don't assume they are the same. We are testing to see if there is evidence if they are the same or different.
Which of the follo...
Statistics Fundamentals Unit 5 Challenge 5,100% CORRECT
Dernier document publié:
de cela
What is NOT assumed before starting an ANOVA test?
• a.)
The population standard deviations are similar.
• b.)
Populations are normally distributed.
• c.)
The population means are the same.
• d.)
The observations are independent and from a random sample.
• c.)Correct.
A one way ANOVA is used to test the differences in population mean values. So we don't assume they are the same. We are testing to see if there is evidence if they are the same or different.
Which of the follo...
Which of these random samples represents a representative sample of the systolic blood pressure of all patients in a hospital?
•
The systolic blood pressure of 50 children admitted in the hospital.
•
The systolic blood pressure of 50 patients in the hospital.
•
The systolic blood pressure of 50 employees in the hospital.
•
The systolic blood pressure of 50 patients in the neurology department.
2
Rachel recorded the number of calls she made at work during the week:
Day ...
Statistics Fundamentals Final Milestone,100% CORRECT
Dernier document publié:
de cela
Which of these random samples represents a representative sample of the systolic blood pressure of all patients in a hospital?
•
The systolic blood pressure of 50 children admitted in the hospital.
•
The systolic blood pressure of 50 patients in the hospital.
•
The systolic blood pressure of 50 employees in the hospital.
•
The systolic blood pressure of 50 patients in the neurology department.
2
Rachel recorded the number of calls she made at work during the week:
Day ...
