Micah recorded the amount of time his mom and dad spend reading bedtime stories. He plotted the data in the box plot below.
2 answers:
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Answer:
Option A
Step-by-step explanation:
Slope of a line passing through two points and
is given by,
Slope =
Line shown in the graph is passing through two points (2, 8000) and (4, 7000).
Therefore, slope of the given line =
= -500 feet per mile
Which means, altitude decreases by 500 ft every mile.
(Negative sign represents the decrease)
Option A is the correct option.
Answer:
and
Step-by-step explanation:
The null hypothesis states that a population parameter (such as the mean, the standard deviation, and so on) is equal to a hypothesized value. We can write the null hypothesis in the form
In this context, the investigator's null hypothesis should be that the average total weight is no different than the reported value by the FAA. We can write it in this form .
The alternative hypothesis states that a population parameter is smaller, greater, or different than the hypothesized value in the null hypothesis. We can write the alternative hypothesis in one of three forms
The investigator wants to know if the average weight of passengers flying on small planes exceeds the FAA guideline of the average total weight of 185 pounds. He should use as his alternative hypothesis.
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