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Round answers to two decimal places a.) A random sample of IQ tests is normally distributed...

Round answers to two decimal places

a.) A random sample of IQ tests is normally distributed with a mean of 99.8 and a standard deviation of 15.3. Bud has an IQ of 143. Use this information to answer the following Z-score questions. Calculate the Z-score for Bud’s IQ.

b.) A clothing store wants to study the amount of money spent in their store by customers. Census data indicated that the data is normally distributed with a mean of $46.89 and a standard deviation of $12.44. Julie spent $13.61 on merchandise in the store. Use this information to answer the following Z-score questions. Calculate the Z-score for the amount Julie spent.

c.) Chest sizes of bears was normally distributed with a mean chest size of 35.663 inches and a standard deviation of 9.352 inches. A bear has a chest size of 57 inches. a) Calculate the Z-score for this bears chest size.

Math   Statistics-And-Probability   
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