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For the three-part question that follows, provide your answer to each question in the given workspace. Identify each part with a coordinating response. Be sure to clearly label each part of your response as Part A, Part B, and Part C.

Part A: Which of the following studies will have a larger variance?

Study I. A researcher studying the number of hours of sleep babies sleep per night.
Study II. A researcher studying the temperature in New York City every day for one year.

Part B: Explain your answer to Part A with a complete sentence.

Part C: A coffee shop owner is hoping to have average sales per day of at least $700 for this week. The sales for the first 6 days of the week have been $389,$467,$517,$930,$215, and $1,260. What is the minimum sales at the coffee shop on the seventh day of the week to meet the owner's goal? Show your work to support your answer.

Respuesta :

A mean is an arithmetic average of a set of observations. The sales on the last day should be $1,122.

What is Mean?

A mean is an arithmetic average of a set of observations. it is given by the formula,

Mean = (Sum of observations)/Number of observations

Part A: The study that will have a larger variance is Study II.

Part B: Since the temperature in the city highly varies due to the change in the seasons, which means the temperature will be freezing in the winter, while it will be hot in the summer, as a result, it can be concluded that the data of the second study will have larger variance.

Part C: Let the sales in the last day be x, therefore,

Mean = (Sum of observations)/Number of observations

$700 = ($389 + $467 + $517 + $930 + $215 + $1,260 + x)/7

$4900= $3778 + x

x = $1,122

Hence, the sales on the last day should be $1,122.

Learn more about Mean:

https://brainly.com/question/16967035

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