IQ scores are normally distributed with a mean of 100 and a standard deviation of 15....

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IQ scores are normally distributed with a mean of 100 and a standard deviation of 15....

IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. A sample of 10 children in a gifted learner program are found to have a mean IQ of 106. Use a z-test to determine if this is significantly different from the normal population mean.

What are your specific null and alternative hypothesis?

Z=+ - 1.96

standard deviation m= 4.743

Z= 1.26

Will you reject or retain the null hypothesis? We will retain the null hypothesis

What can you conclude about the children in this sample?

*bold are the questions i need help with:)

math Statistics-And-Probability

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