The 2007-2008 financial crisis has been considered the worst financial crisis since the Great Depression of the 1930s. It resulted in the collapses of several large financial institutions and led to great concerns about the stability of global financial systems. Since then, investors’ views regarding the growth of economy have been diverging significantly. Many efforts have been made by the government to ensure investors’ confidence in the economy. The table below summarizes a recent survey on investors’ views of the economy. Investors are categorized according to the size of their assets.   (a) What is the probability that an investor with more than 1 billion dollars asset believes that the economy is getting worse?             (b) What is the probability that an investor who believes the economy is getting better has assets with value more than 100 million dollars?             (c) Consider the event of “economy is getting worse” and the event of “investor with asset value less than…

The following data represent the Sales (in $1000) data gathered from a marketing efficacy study in Week 1 of December 2019 at a fast-food chain.Each row is an individual store that was randomly selected for this study. Sales(In_Thousands) 74.53 65.97 67.1 78.78 39.43 75.75 46.48 47.57 52.6 52.73 54.68 56.79 63.72 64.24 64.78 69.83 73.76 80.22 80.8 90.86 92.05 92.53 64.85 76.88 68.12 Use Excel or Ti calculator to perform a one-sample t test to test the claim that the average sales (in $1000) for all such stores is different from 69 in Week 1 of December at 0.06 significance level. a. The sample mean (rounded to 3 decimal palces) is_____________ b. The sample standard deviation (rounded to 3 decimal palces) is__________ c. The test statistic for this test is (rounded to 4 decimal places)_______________ d. The p-value for this test is (rounded to 4 decimal places)__________________ e. At 0.06 significance level, the correct…

Proctor ents urces ources canvas.pdx.edu/courses/106252/assignments/1102418?module_item_id=4856623 Are there less children diagnosed with Autism Spectrum Disorder (ASD) in states that have larger urban areas over states that are mostly rural? Assume data were collected from a fairly urban state and they found 165 eight-year olds diagnosed with ASD out of 18096 eight-year olds evaluated. Assume data were then collected for a fairly rural state and they found 56 eight-year olds diagnosed with ASD out of 2400 eight-year olds evaluated. Is there enough evidence to show that the proportion of children diagnosed with ASD in the fairly urban state is lower than the proportion in the fairly rural state? a.) Test at the 4% level b.) Compute a 96% confidence interval for the difference in proportions. Use the following steps for the hypothesis test. For the confidence interval you do not need to do all the steps since you did some of them already in hypothesis test. Part a.) HYPOTHESIS TEST…