a) represents the IQs of the persons who have had an intense experience with an UFO.
b) The mentioned hypothesis in the question is a two-sided hypothesis because the given alternative hypothesis states that the mean is not equal to 100 which means there is a possibility of less than 100 or more than 100. Hence this is a two-sided test.
d) = 100
sample size n = 25
sample mean M = 101.6
sample std dev s = 8.9
test statistic t = = (101.6 - 100)/(8.9/5) = 0.899
considering alpha = 5%
g)
p-value = 0.378
This P value indicates that IQs of the persons who have had an intense experience with an UFO is 100, we would obtain a difference in 37.8% of studies due to random sampling error.
since p-value is greater than 0.05 we fail to reject null hypothesis, and cocnclude that there is no significant evidence that IQs of the persons who have had an intense experience with an UFO is different than 100.
Activity 22-8: UFO Sighters' Personalities In a 1993 study, researchers took a sample of people who claimed to hav...
In a 1993 study, researchers took a sample of people who dared to have had an intense experience with an unidentified flying object (UFO) and a sample of people who did not claim to have had such an experience (Spanes et al, 1993). They then compared the two groups on a wide variety of variables, duding 10. Suppose you want to test whether or not the average IQ of those who have had such a UFO experience is higher than...
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