Can someone please help me understand how to answer c and d?

Thank you:

I am not trying to submit anyone else's work, I just want guidance on how to complete the parts I have bolded. Thanks.

Companies in the shipping industry vary greatly in terms of the sides of the fleet and annual revenue. The following table shows the data for 6 smaller companies in the industry:

Company Ships (100s) Revenue ($millions)

A 11.5 138

B 10.0 135

C 8.0 100

D 5.0 35

E 7.2 40

F 6.3 32

Please answer the following questions:

At = 0.05, please use t-test to test for the significance of the slope.

Compute the coefficient of correlation.