Here are a couple problems for group work that should help you do this week's MyOpenMath assignment. As before, you should solve this problems together and then your group should send me one set of solutions as a private message on the forum. Be sure to include everyone's name in the message.
This problem has a table you need to process. I've set up a little Colab Notebook to help with that process.
A researcher takes sample temperatures in Fahrenheit of 16 days from Portland (Group 1) and 20 days from New York City (Group 2). Test the claim that the mean temperature in Portland greater than the mean temperature in New York City. Use a significance level of $\alpha=0.01$. Assume the populations are approximately normally distributed with unequal variances. Here's your data:
Portland | New York City |
---|---|
90.3 | 45.1 |
75.8 | 34.2 |
83.8 | 27.9 |
78.7 | 45.1 |
96.7 | 72.9 |
83.3 | 58.5 |
67.3 | 104.2 |
70.4 | 44.3 |
94.5 | 68.8 |
97.4 | 52.5 |
81.5 | 75.1 |
81.5 | 64.9 |
63.6 | 76.3 |
89.3 | 83.7 |
99.3 | 86.3 |
88.9 | 70.8 |
49.4 | |
85.4 | |
61 | |
76.3 |