
Answer:
Use a hypothesis test for difference of 2 means
We reject the null hypothesis
Step-by-step explanation:
We will use a hypothesis test for the difference of 2 means, where the population variances are unknown and not assumed equal. Â (The problem didn't tell us that the variances are equal, so we can't assume they are). Â
We first need to find the sample means and since we don't know the population variances, we need to find the sample variances as well.
See first attached photo for the calculations of these values...
See second attached photo for the hypothesis test...