Provide an appropriate response A private opinion poll is co
Provide an appropriate response. A private opinion poll is conducted for a politician to determine what proportion of the population favors adding more national parks, How large a sample a needed in order to be 90% confident that the sample proportion will not differ from the true proportion by more thin 6% 188 376 7 114 save Question 10 Provide an appropriate response. A university dean is interested in determining the proportion of students who receive some tort of financial aid Rather than examine the records for all students. the dean randomly selects 200 students and finds that 118 of them arc receiving functional aid Use a 95% confidence interval to estimate the true proportion of students on financial aid express the answer in the form p bar plusminus E and round to the nearest thousandth 0.59 plusminus 0.068 0 59 plusminus 0.474 0 59 plusminus 0 005 0.59 plusminus O.OO2 save Question 11 Provide an appropriate response. The National Association of Realtors estimates that 23% of all homes purchased in 2004 were considered investment properties. If a sample of 800 homes sold in 2004 is obtained and it was noted that 248 homes were to he used as investment property, would this be unusual Answer Yes or No. Yes No Save Question 12 Provide an appropriate response. The amount of corn chips dispensed into a 13-ounce bag by the dispensing machine has been identified as possessing a normal distribution with a mean of 13.5 ounces and a standard deviation of 0.1 ounce Suppose 100 bags of chips were randomly selected from this dispensing machine Find the probability that the sample mean weight of these 100 bags exceeded 13.6 ounces. 0.3085 approximately 0.06915 0.1915
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