Sampling distribution

1. A survey of 95 families showed that 40 of the families owned at least one tv. a. (2 points) Find the 90% confidence interval on the proportion of families who own at least one tv. b. (1 points) Find the Margin of Error associated with this confidence interval. c. (1 points) Interpret this interval in the context of the problem. Carefully explain what 90% confidence means in this context. d. (1 points) Suppose you reduce your level of confidence to 80%. Will this create a wider or narrower interval? Does this mean that precision will increase or decrease