In a recent study, it is reported that the average time adults spend on a popular social media platform per day is 46 minutes. A researcher would like to verify if this claim is true. He collected data from a sample of 50 adults and found that the average time spent on the social media platform is 43.6 minutes with a standard deviation of 1.8 minutes. (a) Which statistical procedure would you suggest to the researcher to verify the claim? (b) Based on your answer in part (a) and the information given, determine the conclusion that the researcher would arrive at. Use a significance level of a = 0.05.