The homeownership rates in a certain country have been declining. The country's homeownership rate was 51.2% in 2017 (compared to 68.5% in another country). Suppose, from a random sample of 255 households in the country in 2018, 105 were occupied by the owners of the residence. Complete parts a through c. a. Construct a 98% confidence interval to estimate the actual proportion of households in the country that are occupied by their owners in 2018. The condence interval has a lower limit of El and an upper limit of D. (Round to three decimal places as needed.) b. What is the margin of error for this sample? The margin of error is D. (Round to three decimal places as needed.) C. Is there evidence that this proportion has changed since 2017 based on this sample? This sample evidence that this proportion has changed since 2017, since the