estimate the mean IQ score of statistics students such that it An IQ test is designed so that the mean is 100 and the standard deviation is 13 for the population of normal adults. Find the sample size necessary can be said with 90% confidence that the sample mean is within 7 IQ points of the true mean. Assume that a 13 and determine the required sample size using technology. Then determine if this is a reasonable sample size for a real world calculation. (Round up to the nearest integer)) The required sample size is Would it be reasonable to sample this number of students? No. This number of IQ test scores is a fairly large number. O Yes. This number of IQ test scores is a fairly large number. O Yes. This number of IQ test scores is a fairly small number. No. This number of IQ test scores is a fairly small number. O

Q: -7.4v+2.4(-7.1v+-10)+6.7

A: simplified value is -24.44 v - 17.3

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Q: 1 Evaluate. 5P3 • 6C4 900 300 150

A: Use the formula and evaluate.

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Q: I'm lost

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A: here the graph passes two times  through the x -axis  so there will be two roots

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