This dataset looks at all the rocket launches from 1957 through 2020. The data set is broken down by where the launch happen, who launched the rocket (Private or State), the outcome of the launch, the rocket type, and the payload of the rocket.

The data contains 4324 observations with 15 variables.

The data was found at https://www.kaggle.com/davidroberts13/one-small-step-for-data

Private companies are overall more successful and experience less failures.

• Null Hypothesis: The mean cost of private launches is no different than state launches.

• Alternative Hypothesis: The mean cost of private launches is different than state

dfNew2 <- dfNew%>% ##Filters the Data to only launches where 
  filter(Cost > 0) ##where the cost is known
t.test(Cost ~ PrivateOrState, data = dfNew2) 

## 
##  Welch Two Sample t-test
## 
## data:  Cost by PrivateOrState
## t = -5.8743, df = 626.1, p-value = 6.899e-09
## alternative hypothesis: true difference in means between group P and group S is not equal to 0
## 95 percent confidence interval:
##  -70.66340 -35.25508
## sample estimates:
## mean in group P mean in group S 
##        102.6172        155.5764

We are 95% confident that the true difference of means between Private and state launches is between -70.66 Million and -35.25 Million.

We are confident to say that private launches on average on cheaper by a significant amount than state launches. It is also known from slide # that private launches are more successful.

As technology advances and more governments and companies look towards the sky, the number of rocket launches per year is going to grow.

Humans are naturally curious and space exploration is the perfect place to explore that curiosity.

There has been amazing space missions in our past but even more incredible missions planned for our future.