A type II error fails to reject (accepts) the null hypothesis, although the alternative hypothesis is the true state of nature.It confirms an idea that should have been rejected, claiming that two observances are the same, even though they are different.n example of a type II error would be a pregnancy test that gives a negative result, even though the woman is in fact pregnant. In this example, the null hypothesis would be that the woman is not pregnant, and the alternative hypothesis is that she is pregnant.
If I could only recommend one device for streaming video today, it would be the new Roku Streaming Stick. At $50 it's one of the least expensive home video devices you can buy. It's also one of the best. Roku is the king of streaming, with more worthwhile apps than anybody else.
And it's technically the cheapest. Therefore, if you just want to stream Netflix, go with Amazon Fire TV Stick or Roku Streaming Stick. If you want a gadget that's going to send whatever is on your monitor to your HDTV, go with the Chromecast.If you are an Amazon Prime subscriber it's a no brainer.mazon also packed in a powerful Wi-Fi chip that's on par with the Roku. Both the Fire TV Stick and Roku feature dual-band/dual antenna (MIMO) Wi-Fi, whereas Chromecast only has a single-band Wi-Fi antenna, making it considerably less robust than the others in being able to transmit and receive data signals.