Help with a,b,c Show work

In June 2021, Pew Research Center reported that 39% of Americans are considering an electric car the next time they purchased a vehicle. With the rising prices of gas, a researcher believes that this proportion has increased and decided to conduct a study. Suppose a random sample of 100 Americans was selected. a. What is the probability that the sample proportion exceeds 44%? b. Suppose the researcher found that of the 100 Americans he interviewed, 45 admitted they are considering buying an electric car the next time they shop for a car. Construct and interpret a 95% confidence interval for the proportion of Americans who consider buying an electric car. c. Suppose the researcher found that of the 100 Americans he interviewed, 45 admitted they are considering buying an electric car the next time they shop for a car. Perform a hypothesis test at 10% level of significance to determine if the data provide evidence that the proportion of Americans who consider buying an electric car increased from 39%