Hallie just graduated and got a great job as a graphic designer in San Francisco with a starting
salary of $55,205 per year. After looking at the cost
of apartments in SF she decided to consider a
crazy plan she read about online: living in Las
Vegas and commuting to San Francisco for her new
job.
She decides to ask her boss how many days she
will need to work in the office and how many days
she can work from home.
Then she does some research and finds the
following costs:
Average rent per month: San Francisco $2965, Las
Vegas $610.

Acell phone company offers two plans to its subscribers. at the time new subscribers sign up, they are asked to provide some demographic information. the mean yearly income for a sample of 40 subscribers to plan a is $45,000 with a standard deviation of $9,200. for a sample of 25 subscribers to plan b, the mean income is $64,300 with a standard deviation of $7,100. at the 0.025 significance level, is it reasonable to conclude the mean income of those selecting plan b is larger? assume unequal population standard deviations. hint: for the calculations, assume the plan a as the first sample. what is the decision rule? (negative amount should be indicated by a minus sign. round your answer to 3 decimal places.) compute the value of the test statistic. (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.) what is your decision regarding h0 ? reject h0 fail to reject h0 compute the p-value. less than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.10 greater than 0.10