A.Construct a 95% confidence interval estimate of the population proportion of financial institutions who said that security concerns are a barrier hindering greater consumer adoption of mobile banking.

B. Construct a 95% confidence interval estimate of the population proportion of financial institutions who said that lack of trust is a barrier hindering greater consumer adoption of mobile banking.

C. Construct a 95 % confidence interval estimate of the population proportion of financial institutions who said that difficulty of use is a barrier hindering greater consumer adoption of mobile banking.

D. You have been asked to update the results of this study. Determine the sample size necessary to estimate, with 95% confidence, the population proportions in (a) through (c) to within +-0.04.

A bank report looks at what strategies and measures financial institutions are pursuing to provide mobile financial services to their customers. In a response to a survey question about barriers hindering greater consumer adoption of mobile banking, in a survey of 115 financial institutions, 79 said security concerns are a barrier, 71 said lack of trust in the technology is a barrier, and 13 said difficulty of use was a barrier. Complete parts (a) through (d) below