the mean and standard deviation of hemoglobin level of 23 vagrant students and 21 school children were found to be 10 g/dl, 2.2g/dl and 14g/dl, 2.9g/dl respectively. Is there statistically significant difference with the average hemoglobin of the two groups?

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A:

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A: The score is calculated below:

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A: Given: Mean = 70000, Standard deviation =5400 Let Y defines the sale of certain model of grand…

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A:

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Q: A normally distributed variable has a mean of 75 and a standard deviation of 2. What is the z-score…

A: The z-score for 69 is obtained below: From the given information, the value of mean is 75 and…

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A:

Q: the ____ is based on only two scores in a distribution. -deviations  -variance -range -standard…

A: We know that, Deviations refers to the distance between the observations from their corresponding…

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A: Given : The weights of miniature horses are roughly normally distributed with a mean of 230 pounds…

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A: Given: Heights of women = X X follows Normal distribution with mean 64.9 inches and standard…

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A: Given:

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Q: Suppose the scores of students on an exam are normally distributed with a mean of 253 and a standard…

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A: The detailed solution is as follows below:

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A: The heights of male students are normally distributed with a mean of 170 cm and a standard deviation…

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Q: In a county male height is normally distributed with a mean of 177 cm and a standard deviation of 6…

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Q: The weights of tablets are normally distributed with mean 254 mg and standard deviation 4 mg.…

A: Given that  The weights of tablets are normally distributed with mean 254 mg and standard deviation…

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A: