On 90 journeys to his office, Isaac noted whether or not it rained. He also rec his journey time to the office, and classified each journey as short, medium o- Of the 90 journeys to the office, there were 3 short journeys when it rained, 2 medium journeys when it rained, and 15 long journeys when it rained. There also 14 short journeys when it did not rain. Isaac carried out a x2 test at the 5% level of significance on these data, lookin the weather and the types of journeys.

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