Question

cory is testing an intelligence drug. he recruited participants so they had equal itelligence when he began his study. after 6 months of taking the drug/placebo his drug group showed and iq of 110 and the placebo group showed an iq of 98. he conducted a t test to compare the grug and placebo groups and got the following stat t(49)=1.31,p=.453 did the drug work?

cory is testing an intelligence drug. he recruited participants so they had equal itelligence when he began his study. after 6 months of taking the drug/placebo his drug group showed and iq of 130 and the placebo group showed an iq of 115. he conducted a t test to compare the grug and placebo groups and got the following stat t(49)=1.31,p=.453 did the drug work?

cory is testing an intelligence drug. he recruited participants so they had equal itelligence when he began his study. after 6 months of taking the drug/placebo his drug group showed and iq of 98 and the placebo group showed an iq of 98. he conducted a t test to compare the grug and placebo groups and got the following stat t(49)=1.31,p=.453 did the drug work?

Answer 1

H_o: or there is no significant difference in IQ of drug and placebo group.

ul = u2

H₁:$\mu1\geq\mu2$ or the IQ of drug group is higher than the placebo group.

Assuming

g= 0,05

The test is significant if p-value<0.05(we reject the null hypothesis)

here the p-value=0.453 >0.05(insignificant )

We accept the null hypothesis ie there is no significant difference in IQ of drug and placebo group.

Hence, we conclude that the drug didn't work

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