Use graphpad and the T calculator: While managing a band, you want to see if your band will sell more merchandise at its shows if the band lead singer take his shirt off during their performances. For the next 18 shows, the band alternates: on the first, third, fifth, etc. shows band integrates a video screen. On the second, fourth, sixth, etc. shows the singer doesnt wear it. Merch sales per concertgoer, shirt off: 6.45, 2.75, 10.02, 8.33, 7.19, 5.42, 5.03, 7.30, 4.83 Merch sales per concertgoer, shirt on: 4.84, 3.61, 7.93, 4.20, 9.17, 3.13, 7.91, 4.68, 3.37 a. on average how much more merch do concert goers purchase win the lead singer shirt is off round to the nearest cent? b. use a two sample T interval to come up with 90% confidence interval regarding the increase in merch sales with the lead singer’s shirt is off round appropriately to the penny c.The band is about to tour Canada, and the lead singer, pondering the cold climate, says that he’ll only take his shirt off if you can now say with at least 90% certainty that his going shirtless improves merch sales by more than $0.50 per concertgoer. i. Write (and label) HA, H0, and α. ii.What would a type-2 error be in this context? Your answer must not use the words “accept” “reject” “hypothesis” etc. ii. Run a 2-Sample (unpaired) t-test. What is your p-value? (Round to the nearest 0.001.) iii. Do you tell singer to keep his shirt on ? (For credit, your answer must be both correct and consistent with your answer to part iii.)
Use graphpad and the T calculator: While managing a band, you want to see if your band will sell more merchandise at its shows if the band lead singer take his shirt off during their performances. For the next 18 shows, the band alternates: on the first, third, fifth, etc. shows band integrates a video screen. On the second, fourth, sixth, etc. shows the singer doesnt wear it.
Merch sales per concertgoer, shirt off:
6.45, 2.75, 10.02, 8.33, 7.19, 5.42, 5.03, 7.30, 4.83
Merch sales per concertgoer, shirt on: 4.84, 3.61, 7.93, 4.20, 9.17, 3.13, 7.91, 4.68, 3.37
a. on average how much more merch do concert goers purchase win the lead singer shirt is off round to the nearest cent?
b. use a two sample T interval to come up with 90% confidence interval regarding the increase in merch sales with the lead singer’s shirt is off round appropriately to the penny
c.The band is about to tour Canada, and the lead singer, pondering the cold climate, says that he’ll only take his shirt off if you can now say with at least 90% certainty that his going shirtless improves merch sales by more than $0.50 per concertgoer.
i. Write (and label) HA, H0, and α.
ii.What would a type-2 error be in this context? Your answer must not use the words “accept” “reject” “hypothesis” etc.
ii. Run a 2-Sample (unpaired) t-test. What is your p-value? (Round to the nearest 0.001.)
iii. Do you tell singer to keep his shirt on ? (For credit, your answer must be both correct and consistent with your answer to part iii.)
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