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The mean jumping height of a sample of 47 university athletes is 81.8 cm with standard deviation of 7. The average jumping height for all

The mean jumping height of a sample of 47 university athletes is 81.8 cm with standard deviation of 7. The average jumping height for all sports athletes is 78 cm. What is the calculated t-value? Provide 2 decimal places in your answer and don't enter text

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