# A political candidate has asked you to conduct a poll to determine what percentage ofpeople support him. If the candidate only wants a 10% margin of error at a 90%confidence level, what size of sample is needed?Hint: Video [] You measure 47 dogs' weights, and find they have a mean weight of 79 ounces.Assume the population standard deviation is 10.5 ounces. Based on this, what is themaximal margin of error associated with a 90% confidence interval for the truepopulation mean dog weight.Give your answer as a decimal, to two placesounces

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I need help finding the answer on the TI84 Plus CE and on paper ?. Thank you

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The 100 (1 – α) % confidence interval for the population proportion, π is: (p – (/2­) (π (1 – π)/n), p + (/2­) (π (1 – π)/n)).

Here, n is the sample size, p is the sample proportion, and /2 is the critical value of the z-distribution, above which,...

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