An analyst takes a random sample of 25 firms in the telecommunications industry and constructs a confidence interval for the mean return for the prior year.Holding all else constant,if he increased the sample size to 30 firms,how are the standard error of the mean and the width of the confidence interval affected? 
Definitions:
Levels of Conflict
The various stages or intensities of disagreement or opposition between parties, ranging from mild differences to severe disputes.
Interpersonal
Relating to interactions between individuals, encompassing communication, relationships, and social dynamics.
Intrapersonal
Intrapersonal relates to what occurs within one individual, encompassing thoughts, feelings, and internal communications.
Business Negotiations
The process of discussing and arriving at a mutually acceptable agreement on business matters, such as contracts, prices, or terms of services.
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