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e) Below is SPSS output for this study. Using the descriptive statistics, does it appear that caffeine has an effect on reaction time? Which group seemed to have more variability in their reaction time? Explain. Condition Experimental Statistics How fast subjects respond On Missing Median Mode Std. Deviation Variance & Multiple modes exist. The smallest value is shown b. Condition Experimental Mean Condition = Control Statistics How fast subjects respond seconds) Masing 14.500-0 14.5000 Mode Sed. Deviation Variance & Condition Control 10 0 52705 276 10 0 24.1000 24.5000 25.00 1.79196 3.213 at the spss outpu well, from looking the caffeine has more effect on the reaction time compared to water reaction.

e) Below is SPSS output for this study. Using the descriptive statistics, does it appear that caffeine has an effect on reaction time? Which group seemed to have more variability in their reaction time? Explain. Condition Experimental Statistics How fast subjects respond On Missing Median Mode Std. Deviation Variance & Multiple modes exist. The smallest value is shown b. Condition Experimental Mean Condition = Control Statistics How fast subjects respond seconds) Masing 14.500-0 14.5000 Mode Sed. Deviation Variance & Condition Control 10 0 52705 276 10 0 24.1000 24.5000 25.00 1.79196 3.213 at the spss outpu well, from looking the caffeine has more effect on the reaction time compared to water reaction.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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how do you get those answers ? Such as 0.112 and 0.167
### Analysis of Caffeine's Effect on Reaction Time **SPSS Analysis Summary:** From the SPSS output, it appears that caffeine has an effect on reaction time. - The mean reaction time for the espresso group is **0.673 seconds**. - The mean reaction time for the water group is **0.803 seconds**. This indicates that the espresso group had a faster reaction time compared to the water group. **Standard Deviation:** - The standard deviation for the espresso group is **0.112 seconds**. - The standard deviation for the water group is **0.167 seconds**. This suggests that the reaction times in the water group were more variable than those in the espresso group. The findings highlight the influence of caffeine on improving reaction time while also indicating a more consistent response in the caffeine group compared to the variability observed in the water group.
Transcribed Image Text:### Analysis of Caffeine's Effect on Reaction Time **SPSS Analysis Summary:** From the SPSS output, it appears that caffeine has an effect on reaction time. - The mean reaction time for the espresso group is **0.673 seconds**. - The mean reaction time for the water group is **0.803 seconds**. This indicates that the espresso group had a faster reaction time compared to the water group. **Standard Deviation:** - The standard deviation for the espresso group is **0.112 seconds**. - The standard deviation for the water group is **0.167 seconds**. This suggests that the reaction times in the water group were more variable than those in the espresso group. The findings highlight the influence of caffeine on improving reaction time while also indicating a more consistent response in the caffeine group compared to the variability observed in the water group.
## SPSS Output Analysis for Reaction Time Study ### Research Question: Using the descriptive statistics, does it appear that caffeine has an effect on reaction time? Which group seemed to have more variability in their reaction time? Explain. ### Statistics for Condition = Experimental - **N (Valid):** 10 - **N (Missing):** 0 - **Mean:** 14.5 - **Median:** 14.5 - **Mode:** 14.0 - **Standard Deviation:** 0.52705 - **Variance:** 0.278 #### Note: - Multiple modes exist; the smallest value is shown. ### Statistics for Condition = Control - **N (Valid):** 10 - **N (Missing):** 0 - **Mean:** 24.1 - **Median:** 24.5 - **Mode:** 25.0 - **Standard Deviation:** 1.79196 - **Variance:** 3.211 ### Analysis: From the SPSS output, it appears that caffeine has an effect on reaction time: - The **experimental group**, which is assumed to have consumed caffeine, demonstrated a **lower mean reaction time (14.5 seconds)** compared to the **control group** with a mean of **24.1 seconds**. - **Variability:** The control group showed higher variability in reaction times (Standard Deviation = 1.79196) compared to the experimental group (Standard Deviation = 0.52705), as indicated by the higher variance (3.211) compared to the experimental group’s variance (0.278). ### Conclusion: **Handwritten Note:** It appears that caffeine has more effect on the reaction time compared to water reaction. This analysis supports the hypothesis that caffeine reduces reaction time, evidenced by the lower mean and reduced variability in the experimental group.
Transcribed Image Text:## SPSS Output Analysis for Reaction Time Study ### Research Question: Using the descriptive statistics, does it appear that caffeine has an effect on reaction time? Which group seemed to have more variability in their reaction time? Explain. ### Statistics for Condition = Experimental - **N (Valid):** 10 - **N (Missing):** 0 - **Mean:** 14.5 - **Median:** 14.5 - **Mode:** 14.0 - **Standard Deviation:** 0.52705 - **Variance:** 0.278 #### Note: - Multiple modes exist; the smallest value is shown. ### Statistics for Condition = Control - **N (Valid):** 10 - **N (Missing):** 0 - **Mean:** 24.1 - **Median:** 24.5 - **Mode:** 25.0 - **Standard Deviation:** 1.79196 - **Variance:** 3.211 ### Analysis: From the SPSS output, it appears that caffeine has an effect on reaction time: - The **experimental group**, which is assumed to have consumed caffeine, demonstrated a **lower mean reaction time (14.5 seconds)** compared to the **control group** with a mean of **24.1 seconds**. - **Variability:** The control group showed higher variability in reaction times (Standard Deviation = 1.79196) compared to the experimental group (Standard Deviation = 0.52705), as indicated by the higher variance (3.211) compared to the experimental group’s variance (0.278). ### Conclusion: **Handwritten Note:** It appears that caffeine has more effect on the reaction time compared to water reaction. This analysis supports the hypothesis that caffeine reduces reaction time, evidenced by the lower mean and reduced variability in the experimental group.
Expert Solution
Step 1: Write the given information.
Condition = Experiment
N Valid10
Missing0
Mean14.5
Median14.5
Mode14
Std. Deviation0.52705
Variance0.278


Condition = Control
N Valid10
Missing0
Mean24.1
Median24.5
Mode25
Std. Deviation1.79196
Variance3.212
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