Consider the following time series data: 1 2 3 4 5 6 7 26 15 22 14 21 25 17 PART 1.Compute MSE using the most recent value as the forecast for the next period and then calculate the forecast for month 8.  PART 2.Compute MSE using the average of all the data available as the forecast for the next period. What is the forecast for month 8?

What do the Forecast for each year add up to?

In 2013 the average houshold credit card balance was $9,884. In 2016 the average houshold credit card balance was $11,184. (a) Compute the average yearly change in credit card balance from 2013 to 2016 (b) Use this to predict what the average credit card balance was in:i. 2014ii. 2015iii. 2017iv. 2018 (c) In 2014 the avearge balance was $10,450 and in 2015 the avearge balance was $10,762. Where your predictions good for those years? (d) In 2017 the average balance was $10,821 and in 2018 the aveage balance was $9,333. Where your predictions good for those years?

A team of UMD students have invented an inhalable drug that they think will help people breathe better during hard exercise. They test the drug on 3 volunteers (A, B, and C) by measuring their levels of arterial oxygen before receiving the drug (their base level) and then after 5 and 10 minutes have elapsed, respectively. The results are listed in the table. Oxygen level [mmHg] A B C base level 847076 after 5 minutes 85 74 81 after 10 minutes 90 75 98 We want to see how the drug work (better or worse) when compared to the base level. Compute the 90% two-sided confidence intervals for the mean difference between the base level and after 5 minutes. X1b Xub X 1b -5.1783 Xub 11.8450 Compute the 90% two-sided confidence intervals for the mean difference between the base level and after 10 minutes. -1.94 ? Xx 0% 23.94 ? × 0% ? × 0% X 0%

Where do the cumulative frequency numbers come from?

severe storms indicate that e3.5 feet. Does this information suggest that the storm is (perhaps temporarily) increasing above the severe rating? Use off fxed cement piers. Suppose that a reading of 31 waves showed an average wave height of x= 16.7 feet. Previous studies of Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of 164 feet for waves hitting the shore. Suppose that a Nor'easter is in progress at the severe storm class rating. Peak wave heights are usually measured from land C (a) What is the level of significance? State the null and alternate hypotheses. Ho: H- 16.4 ft; H:>'16.4 ft Ho: H 16.4 ft; H1: = 16.4 ft Ho: H- 16.4 ft; H: H+ 16.4 ft (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. The standard…

A company cl mean monthl E. Ho: H Ha

kgiba05h_ch10.05 State cancer registry data for colorectal cancer: Total Males Females Population 1,570,000 780,000 790,000 Newly diagnosed cases 793 415 378 Residents with "history of" 12,548 6,983 5,665 Calculate: a. State prevalence of colorectal cancer in males (per 10,000) (compute to one decimal place) b. State incidence of colorectal cancer in females (per 10,000) (compute to two decimal places) Icon Key

In response to rising concerns about identity​ theft, the number of models of paper shredders a company manufactures increased approximately steadily from 3 models in 1993 to 38 models in 2008. Find the average rate of change of the number of shredder models manufactured per year between 1993 and 2008. The average rate of change of the number of paper shredders manufactured per year between 1993 and 2008 was ___

The table below contains the periodontal status of individuals and their sex. Periodontal status refers to gum disease where individuals are classified as either Healthy, have Gingivitis, or have Periodontal Disease (Perio). Female Male Total Healthy 2108 1124 3232 Gingivitis 1582 937 2519 Perio 873 931 1804 Find Pr{Female|Gingivitis). If necessary, round your answer to 3 places after the decimal. Total 4563 2992 7555