In the current year, hermanson corporation reported net income of $240,000, paid dividends of $25,000 on common stock, and $40,000 of dividends on preferred stock. hermanson corporation’s common stockholders’ equity was $700,000 at the beginning of the year and its common stockholders’ equity is $900,000 at the end of the year. the company’s return on common stockholders’ equity for the current year is

Sales at a fast-food restaurant average $6,000 per day. the restaurant decided to introduce an advertising campaign to increase daily sales. to determine the effectiveness of the advertising campaign, a sample of 49 days of sales were taken. they found that the average daily sales were $6,300 per day. from past history, the restaurant knew that its population standard deviation is about $1,000. if the level of significance is 0.01, have sales increased as a result of the advertising campaign? multiple choicea)fail to reject the null hypothesis.b)reject the null hypothesis and conclude the mean is higher than $6,000 per day.c)reject the null hypothesis and conclude the mean is lower than $6,000 per day.d)reject the null hypothesis and conclude that the mean is equal to $6,000 per day.expert answer