3. Your friend claims that his “lucky socks” helps him win more when gambling. To test if this charm truly is lucky, you
Posted: Sun Sep 05, 2021 5:20 pm
3. Your friend claims that his “lucky socks” helps him win more when gambling. To test if this charm truly is lucky, your friend goes to Las Vegas and plays for 5 days with the “lucky socks” and for 5 days without them. His winnings are in the following table. Negative winnings mean he lost money that day. Without Lucky Socks (Group 1) With Lucky Socks (Group 2) -17 -22 -15 -18 20 25 -35 180 28 210 Group 1 mean = -3.8 Group 1 SD = 26.7 Group 2 mean = 75 Group 2 SD = 111.6 Your friend says, "My average winnings with the lucky socks is $75, but without it, my average is negative $3.80. This is proof that the charm works." Do you agree? Does this provide evidence that the lucky socks help him win more money? First: Conduct a t-test for independent samples. What is the t-statistic? A. -1.535 B. -1.865 C. -2.457 D.-3.104 4. Continuing the t-test for independent samples, what is the resulting p-value? O 0.2