I cancelled out of the 2-Sample t dialog window and quickly ran an Equal Variances test (Stat > Basic Statistics > 2 Variances) and received these results: But how do I know if the variances are equal or not? By using quick test in Minitab! If you click on Options you’ll see a checkbox for "Assume Equal Variances." Checking this box will result in a slightly more powerful 2-Sample-t test.
Cnet download speed test download#
I chose “Each Sample is in its own column” under the dropdown, and entered in the column for download speed for Sample 1 and upload speed for Sample 2. Go to Stat > Basic Statistics > 2-Sample t: Let’s find out if there was a statistical difference between the download speed and the upload speed. Is There a Difference Between Upload and Download Speed? As a quick reminder, the null hypothesis is that our data follows a normal distribution. Both probability plots show p-values greater than alpha, and therefore we do not have enough evidence to reject the null hypothesis. I’ll be using an alpha level of 0.05 to compare the p-value to. Here are the probability plots for download and upload speed. I went to Stat > Basic Statistics > Normality Test.
Cnet download speed test software#
I ran 30 speed tests from my office at Minitab and recorded the download and upload data into a Minitab Statistical Software worksheet: Here is a sample of the data: I was also curious as to whether the population means of these speeds were statistically different. The download speed is the rate at which data travels from the Internet to your device, and the upload speed is the rate at which data travels from your device to the Internet. When performing an Internet speed test, you are given an estimated download and upload speed. If I were to run enough tests, would these speeds be normally distributed? Recently I started thinking about the distribution of these speeds. They could also stem from the validation that I need in "getting what I am paying for," although I realize that there are other factors that determine what Internet speed you ultimately end up with when you browse the Web. My need to perform these tests could stem from the cool-looking interfaces they employ on their site, as they display the results using analog speedometers and RPM meters. Every now and then I’ll test my Internet speed at home using such sites as.