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Mathematics, 09.11.2019 03:31 emalvidrez5205

Asmall gym in biloxi, mississippi, averages about 50 customers on weekdays with a standard deviation of 10. it is safe to assume that the underlying distribution is normal. in an attempt to increase the number of weekday customers, the manager offers a $10 membership discount on 5 consecutive weekdays. she reports that her strategy has worked since the sample mean of customers during this weekday period jumps to 75.

a. how unusual would it be to get a sample average of 75 or more customers if the manager had not offered the discount?
b. do you feel confident that the manager's discount strategy has worked? explain.

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