How to Do a One Tailed T-Test in Statistics

In this paper I am going to put to death a atomic number 53-tailed, one-sample t¬- shew in order to streak the nugatory surmise that the modal(a) number of ounces of metric grain per stroke equals sixteen. A shaper of a particular brand of texture maintains on that point is an sightly of sixteen ounces of cereal per box seat. On the other hand, a consumer free radical asserts the average is fewer than sixteen ounces per box. The consumer conclave is going to deposit a class action font for false announce if the average is fewer than sixteen ounces per box. I was hired by the consumer group to determine whether the consumer group is typeset or the cereal manufacturer is correct. According to Sprinthall (2003, p. 249), Sometimes, however, a investigator not unaccompanied assumes that a mean difference among samples will blow over simply also predicts the commissioning of the difference¬. When this happens, the statistical finale is not based on both tai ls of the distribution, but only one. In this instance, the condense of the t ratio is crucial. When conducted in this way, the t test is called a one-tail t test. The calculation of a one- tail t test is identical to that of the two-tail t. The only differences be in the way the selection hypothesis is written and in the method use for smell up the table entertain of t [italics in original].

I randomly selected 20 supermarkets, and from separately supermarket I randomly selected one box of the manufacturers cereal. I then weighed the cereal in each box for all twenty boxes. I came up with numbers ranging from 12.4 universe the lowest to 18.4 being the highes! t tip of the cereal. I then used the one-tailed, one-sample t test to test the null hypothesis that the average number of ounces of cereal per box equals sixteen. After completing the one-tailed, one-sample t test I compared the of import level to the significance and firm to retain the null hypothesis. If you indispensableness to get a rich essay, order it on our website: OrderCustomPaper.com

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