David has panic disorder. Over time he has developed a set o…

David has panic disorder. Over time he has developed a set of rituals and habits that are designed to avoid things that he feels may trigger a panic attack. Recently, this has progressed to the point where David no longer wants to leave the house as he fears that being in both open spaces and crowds makes him more likely to have a panic attack. David’s diagnosis now includes the following comorbidity:

The daily revenue at a USF bookstore has been recorded for t…

The daily revenue at a USF bookstore has been recorded for the past five years. The mean daily revenue is $1,500. The standard deviation is $500. The distribution is skewed to the right due to high-volume days (e.g., beginning of the semester, football game days, graduation). Suppose a random sample of 100 days is selected, and the average daily revenue is computed. Which of the following describes the sampling distribution of the sample mean?

Company XXX measures customers’ willingness to recommend its…

Company XXX measures customers’ willingness to recommend its product on a scale of 0 to 100. The Willingness to Recommend scores follow a normal distribution with a mean of 65 and a standard deviation of 5. What is the probability that a randomly selected customer will have a Willingness to Recommend score between 60 and 73?  Use the Z-score table provided to calculate the probability. Answer Format: Enter the probability as a percentage with two decimal places (e.g., 12.45%). Canvas will not recognize your answer if you do not follow this format.      

You are looking to purchase external secondary data for your…

You are looking to purchase external secondary data for your research. A random sample of 60 data sources has a mean cost of $1,000, with a population standard deviation of $200. Construct a 95% confidence interval for the population mean (Z = 1.96Z=1.96). Instructions: Round your final answers to two decimal places. Enter your response in the following format: (lower limit, upper limit); For example, enter (123.45, 678.99), if 123.45 is the lower confidence interval and 678.99 is the upper confidence interval.