Your local animal shelter wants to estimate the proportion of households in your area that own at least one cat, with 90% confidence. a. Interpret the 90% confidence level in this context. The animal shelter selected a random sample of households and used the sample to estimate the proportion of all households that own at least one cat. The conditions for calculating a 90% confidence interval for the proportion of households in your area that own at least one cat were checked and verified, and the resulting confidence interval was 0.274 + 0.12 . b. The National Veterinary Medical Association claims that 25.4% of US households own at least one cat. Does the interval estimate provide evidence that the proportion of cat owners in your area is different from the claimed national proportion? Explain. c. How many households were selected in the local animal shelter sample? Show how you obtained your