## Activity 3.6 Instant challenge Fling Machine

Introduction

There are many ways to solve a problem. Sometimes it is as simple as applying a piece of duct tape. Other times it takes months or years for a product to progress from an idea into full-scale production. In this activity your team will quickly design and build a device that will send a cotton ball as far as possible through the air.

There are many ways to solve a problem. Sometimes it is as simple as applying a piece of duct tape. Other times it takes months or years for a product to progress from an idea into full-scale production. In this activity your team will quickly design and build a device that will send a cotton ball as far as possible through the air.

**Conclusion**

1. Analyze the cotton ball travel distance data that you collected.

a. Record the travel distances of the cotton ball that you measured during the testing phase below and create a dot plot of your data.

b. Create a histogram of your data using five class intervals.

c. Is the data normally distributed? Justify your answer.

No because there is a outlier

d. Calculate the mean, median, range and

**sample**standard deviation of the travel distances of the cotton ball.

e. Give a range of travel distances within which you would predict that 95% of all cotton balls launched with your device would fall. For example, you might predict that 95% of the cotton balls that you launch would travel between 2.25 ft and 3.00 ft. Justify your answer.

1. Do you feel that the statistical analysis results would be a better measure of performance when comparing alternate devices that the distance traveled by a cotton ball in a single attempt? Why or why not?

No because you need more data to compare for accurate the results are

2. How would you recommend using the results of your statistical analysis of travel distances to assess device performance (rather than giving points for the distance of the single attempt allowed in the challenge)?

I would recommend these results by comparing data and too see how accurate it can be to use a dial caliper

3. If you had the opportunity to optimize your design, how would you increase the distance that the cotton ball moves?

i would make it of mechanic stuff like make it more technical for it can fling by itself

4. If you had the opportunity to optimize your design, how would reduce the amount of materials used?

the materials i would optimize would be the use if a cardboard box

5. How could you improve the effectiveness of your team?

I can improve the effectiveness of my team by getting more data