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training, it was determined that...

In a random sample of 60 dog owners enrolled in obedience training, it was determined that the mean amount of money spent per owner was $109.33 per class. Assuming the population standard deviation of the amount spent per owner is $12, construct and interpret a 95% confidence interval for the mean amount spent per owner for an obedience class. Round to the nearest cent.A.

($106.23,$112.43); It can be stated with 95% confidence that the mean amount spent per dog owner for a single obedience class is between $106.23 and $112.43.B.

($106.78,$111.88); It can be stated with 95% confidence that the mean amount spent per dog owner for a single obedience class is between $106.78 and $111.88.C.

($105.20,$113.45); It can be stated with 95% confidence that the mean amount spent per dog owner for a single obedience class is between $105.20 and $113.45.D.

($106.74,$111.92); It can be stated with 95% confidence that the mean amount spent per dog owner for a single obedience class is between $106.74 and $111.92.

($106.23,$112.43); It can be stated with 95% confidence that the mean amount spent per dog owner for a single obedience class is between $106.23 and $112.43.B.

($106.78,$111.88); It can be stated with 95% confidence that the mean amount spent per dog owner for a single obedience class is between $106.78 and $111.88.C.

($105.20,$113.45); It can be stated with 95% confidence that the mean amount spent per dog owner for a single obedience class is between $105.20 and $113.45.D.

($106.74,$111.92); It can be stated with 95% confidence that the mean amount spent per dog owner for a single obedience class is between $106.74 and $111.92.

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