Consider the Following to Answer the Question(s) Below

question 1

Multiple Choice

Consider the following to answer the question(s) below:
Vending machines on a college campus offer a variety of drinks. The purchasing agent believes that each type of drink is equally preferred by students and consequently orders equal quantities. The number of drinks sold from vending machines on this campus for the last six months is shown in the following table.

-What is not true about the expected frequencies?

• A) Assuming that the null hypothesis is true, the expected frequencies are equal across the four types of drinks.
• B) The value of an expected frequency needs not be an integer. However, in this case they all are equal to 170.
• C) We use the total number of observations (680) to calculate the expected frequencies.
• D) The expected frequencies are 0.234 (Lemon Lime), 0.291 (Kiwi Strawberry), 0.256 (Tropical Punch), and 0.219 (Grape).
• E) The expected frequencies are all equal to (0.25) (680) = 170.

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