A researcher on Chicago’s west side wishes to determine the relationship between

Question

A researcher on Chicago’s west side wishes to determine the relationship between the air temperature and the number of fire hydrants opened illegally on the west side. The researcher gathers the data below which represent the days’ high temperature (in degrees Fahrenheit) and the number of fire hydrants opened that day. Eight days in July were sampled and the data are below:

Is this a one-tailed HA or a two-tailed HA?

one-tailed

two-tailed

Day Temperature (X) Illegally Opened Hydrants (Y) 1 85 12 2 95 18 3 93 17 4 98 20 5 75 5 6 82 10 7 93 10 8 88 12

Explanation / Answer

As it says "wishes to determine the relationship" and it does not say whether it wants a positive or negative relationship, then it has to be

OPTION B: TWO TAILED [ANSWER]

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