A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO is less than 5%.
the type of alternative hypothesis is:
left-tailed
right-tailed
or two-tailed
Is this right-tailed?
No
Left-tailed
To determine the type of alternative hypothesis, we need to consider the claim being made by the paranormal researcher. In this case, the researcher claims that the proportion of Americans that have seen a UFO is less than 5%. This suggests that the alternative hypothesis is likely a left-tailed hypothesis.
In a left-tailed hypothesis, the alternative hypothesis suggests that the parameter being tested is less than a certain value. In this case, the parameter being tested is the proportion of Americans who have seen a UFO, and the claimed value is less than 5%.
Therefore, the correct answer is left-tailed.