1. Coffee. A student wanted to determine if there is a difference in the number of...

1. Coffee. A student wanted to determine if there is a difference in the number of calories between comparable coffee drinks at Starbucks and Seattle's Best Coffee (SBC), two major coffee retailers. She found caloric information about 10 different drinks and created the table shown below:

Drink	Starkbucks	SBC
Cappucino	120	130
Latte	190	160
Vanilla Latte	250	240
Iced Latte	130	140
Mocha	260	390
White Chocolate Mocha	400	310
Peppermint Mocha	330	410
Iced Mocha	200	240
Hot Chocolate	300	320
Chai Tea Latte	240	230

Conduct an appropriate hypothesis test to investigate whether, on average, there is a difference in calories between comparable drinks at Starbucks and SBC. Be sure to state hypothesis using proper notation, check conditions, compute a P-value, and state a conclusion.

2. Another Cup. Construct a 90% confidence interval for the mean difference in number of calories between comparable beverages at Starbucks and SBC. Be sure to check conditions, express the interval using proper notation, and include a sentence explaining the meaning of the interval.

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Expert Solution

orchestra answered 1 year ago

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