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In: Statistics and Probability

study claims that the average mean that the girls kids start walking is almost 13 months....

study claims that the average mean that the girls kids start walking is almost 13 months. A researcher want to checkif the claim is true or false. A random sample of 40 of girls kids was selected randomly, with average mean and standard deviation 14 and lmouth respectively. Check whether the hypothesis is true or false give that t- tabulated =2.093

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