The Upper Deck Ken Griffey, Jr., rookie baseball card is one of the iconic collectibles of...

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The Upper Deck Ken Griffey, Jr., rookie baseball card is one of the iconic collectibles of the 1980s, and as such have maintained a decent value despite the fact that over a million were printed. In 2021, ungraded versions of the card sold for an average of $50, but hobbyists believe that average is increasing. A random sample of 38 recent sales of the card yield a mean price of $58.23. Assume the population standard deviation is holding steady at $24. Test the claim that the mean selling price of ungraded Upper Deck Griffey rookie cards is now greater than $50. Use 0.05 as your level of significance. Be sure to report the p-value and write an interpretation in terms of the claim that we have been told to test. The Upper Deck Ken Griffey, Jr., rookie baseball card is one of the iconic collectibles of the 1980s, and as such have maintained a decent value despite the fact that over a million were printed. In 2021, ungraded versions of the card sold for an average of $50, but hobbyists believe that average is increasing. A random sample of 38 recent sales of the card yield a mean price of $58.23. Assume the population standard deviation is holding steady at $24. Test the claim that the mean selling price of ungraded Upper Deck Griffey rookie cards is now greater than $50. Use 0.05 as your level of significance. Be sure to report the p-value and write an interpretation in terms of the claim that we have been told to test.