Pennies minted after 1983 are known to weigh exactly 2.50 grams. You can use this information to determine whether your scale is correctly calibrated. You place a penny on a scale and weigh it numerous times. If the scale is calibrated correctly, then u would equal 2.50 grams. If it's not correctly calibrated, then u would not equal 2.50 grams. State the null and alternate hypotheses. Note: Here are some symbols you may want to copy and paste when you write your answers: Но: H1:

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