Question

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 98, so you want to test Ho: = 98 vs. Hall> 98 a. Identify dearly what the symbol represents in this context. In this context, represents the average 1 of all people who did not daim to have had an intense experience with a UFO. In this context, represents the average 19 of all people in the study, In this context, represents the average 1 of all people who daim to have had an intense experience with a UFO. b. Is this a one-sided or a two-sided test? Explain how you can tell This is test because you wish to test whether the average 1 of this group is The name othed the 25t h

Answer 1

a.) ans:μ represents the average IQ of all people who claim to have had an intense experience with a UFO

b.)this is a one tailed test because you wish to test whether the average IQ of this group is > 96

c.)

ans:The population of IQ scores for this group should be approximately normally distributed. The sample needs to be representative of all individuals who claim to have had such an experience .

d.)

1 = 2.02 1 - 101.6 – 98 Vn 8.9/425 e.)p – value = P(t > 2.02) = 0..0273 (use excel function :=T.DIST.RT (2.02, 24)

significance level is not given so take default significance(Alpha)=0.05

here,

p-value< significance, hence reject the null hypothesis.

There is enough evidence to support the claim the the average UFO experiance is higher than 98.

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I have solved all parts of the question and wrote the conclusion, as you have not provided the dropwons of the last part of the question f . so fill it according to the solution.