A Marketing Firm Needs to Replace Its Existing Network Provider

Multiple Choice

A marketing firm needs to replace its existing network provider and is considering three different providers. A primary consideration is the amount of system downtime. The following table contains the amount of network downtime (in hours) for the last five months for each network provider. Using the critical value approach and α = 0.05, the appropriate conclusion is ________.

A) reject the null hypothesis, we cannot conclude not all median network downtimes are equal
B) do not reject the null hypothesis, we cannot conclude not all median network downtimes are equal
C) reject the null hypothesis, we can conclude not all median network downtimes are equal
D) do not reject the null hypothesis, we can conclude not all median network downtimes are equal