EA 6 ANSWER FORM

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School

Purdue University *

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Course

30301

Subject

Statistics

Date

Apr 3, 2024

Type

pdf

Pages

3

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STAT 30301 – EXCEL ACTIVITY 6: ANSWER FORM 20 points Enter your answers & Excel outputs by their problem numbers. Save completed form as a pdf. Submit completed pdf of THIS FORM to your Brightspace STAT 30301 Merge Course for credit. GO TO NEXT PAGE FOR #8 - #13 1. Type your answer below. (2 points) Measure Notation (Letter) Value Population mean D 3.05 Sample mean F 3.17 Population standard deviation E 1.3 Sample size B 153 2. Type your answer below: (1 point) Shape: Approximately Normal 3. Type your answer below: (1.5 points) 𝝁 ? = 3.05 4. Type your work and answer below: (2 points) 𝝈 ? = 1.3/sqrt(153) = .105 hrs 5. Paste your Excel output below: (2 points) Significance Level = 0.01 Margin of Error: m= 0.1857 Sample Mean 3.17 Population Standard Deviation 1.3 Sample Size 153 Standard Error of x-bar 1.05 Significance Level 0.01 Margin of Error: m = 0.2707 Lower Bound 2.8993 Upper Bound 3.4407 6. Type your answer below: (1.5 points)
The point estimate is the sample mean. = 3.17 hrs. 7. Type your answer below. (2 points) (2.98,3.36)
8. Type your answer below. (2 points) We ’ re 99% confident that the population mean is between 2.98 and 3.36 hours. 9. Type your work and answer below. (2 points) 𝝈 ? = 1.3/sqrt(200) = 0.092 10. Type your answer below: (1 point) One is less than the other because of the difference in sample sizes. A greater sample size means a smaller standard error. 11. Type your answer below: (2 points) (3.07,3.55) 12. Type your answer below: (1 point) a. True b. False 13. SAVE THIS ANSWER FORM Document AS A PDF ; any other file type will receive AT MOST 75% credit for the assignment. Upload your SINGLE pdf file to the Excel Activity 6 Assignment in the Brightspace Merge course .
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