The following data show the average monthly utility bills for a random sample of households in Baltimore and for a random sample of households in Houston (The bills include phone, television, Internet, electricity, and natural gas ) a Perform a hypothesis test using 0 05 to determine if there is a difference between the mean utility bills in these two cities b Determine the p value and interpret the results c Verify your results using PHStat Baltimore Houston $390 44 $359 52 Sample mean Sample size 36 $58 Population standard deviation $64

Question: The following data show the average monthly utility bills for a random sample of households in Baltimore and for a random sample of households in

The following data show the average monthly utility bills for a random sample of households in Baltimore and for a random sample of households in Houston. (The bills include phone, television, Internet, electricity, and natural gas.)

Baltimore Houston $390.44 $359.52 Sample mean Sample size 36 $58 Population standard

a. Perform a hypothesis test using α = 0.05 to determine if there is a difference between the mean utility bills in these two cities.

b. Determine the p value and interpret the results.

c. Verify your results using PHStat.

Baltimore Houston $390.44 $359.52 Sample mean Sample size 36 $58 Population standard deviation $64

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