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It is conjectured that the mean amount of time to type the text message using the Apple iPhone and the mean amount of time to

It is conjectured that the mean amount of time to type the text message using the Apple iPhone and the mean amount of time to type the text message using a Samsung Galaxy will be the same, and of interest is to test this conjecture versus the alternative that the mean amount of time to type the text message using the Apple iPhone is different from the mean amount of time to type the text message using the Samsung Galaxy. Based on this, state the appropriate null and alternative hypotheses that should be tested.

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