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- An business reviews data on the daily amount of calls it receives. Are the data discrete or continous?The creator of a new online multiplayer survival game has been tracking the monthly downloads of the game. The following table shows the monthly downloads (in thousands) for each month of the current and previous year. Click on the datafile logo to reference the data. Month Downloads Month Downloads (previous year) (thousands) (current year) (thousands) February 33.0 January 37.0 March 34.0 February 35.0 April 34.0 March 37.0 May 32.0 April 38.0 June 32.0 May 35.0 July 35.0 June 36.0 August 35.0 July 35.0 September 37.0 August 35.0 October 37.0 September 34.0 November 36.0 October 31.0 December 34.0 Compute the mean, median, and mode for number of downloads in the previous year. Mean (to 3 decimals) thousand Median (to 2 decimal) thousand Mode (to 2 decimal) thousand…It has been noted that the amount of time people spend shopping in supermarkets has decreased due to the global pandemic. Based on this realization, the manager of Power Supermarket decided to collect data for the length of time people spend in his supermarket during a one week period. He is aiming to use the data to help him decide if the supermarket should be converted to a virtual supermarket/a delivery based one. Before the pandemic Time Frequency 1-5 50 6-10 25 11-15 22 16-20 80 20-25 60 25-30 45 30-35 35 After the pandemic Time Frequency 1-5 30 6-10 65 11-15 45 16-20 50 20-25 35 25-30 40 20-35 35 Use the information above to construct two frequency polygons. Do you think that Power Supermarket should close their doors? Explain your answer. *Assume that a person who spends more time in a supermarket buys a lot of goods and a person who spends a short time in a supermarket,…
- Why is the data lognormalA researcher with the Department of Education followed a cohort of students who graduated from high school in a certain year, monitoring the progress the students made toward completing a bachelor's degree. One aspect of his research was to determine whether students who first attended community college took longer to attain a bachelor's degree than those who immediately attended and remained at a 4-year institution. The data in the table attached below summarize the results of his study. Complete parts a) through e) below.The full data is on the 2nd picture
- The U.S. Geological Survey monitors and reports on earthquakes, providing daily real-time, worldwide earthquake lists. Some of the information for four of the 105 earthquakes of magnitude 1.5 or greater that occurred on May 10, 2013, is shown in the following table. Magnitude is given on the Richter scale and NST stands for the number of stations that reported the activity on the same earthquake. Complete parts (a) through (e) below. Time Magnitude Depth (km) NST Region 00:03:16 1.7 75.9 29 Alaska 04:59:11 1.7 134.9 18 Alaska 08:27:04 2.8 64.0 21 Alaska 23:30:09 4.2 10.0 34 China a. Identify the type of data provided by the information in the first column of the table. Also identify the variable under consideration. Quantitative, Continuous, Qualitative, Quantitative, Discrete, region where the earthquake occurred depth of the earthquake in kilometers number of stations reporting the earthquake…Recent research indicates that the effectiveness of antidepressant medication is directly related to the severity of the depression (Khan, Brodhead, Kolts & Brown, 2005). Based on pretreatment depression scores, patients were divided into four groups based on their level of depression. After receiving the antidepressant medication, depression scores were measured again and the amount of improvement was recorded for each patient. The following data are similar to the results of the study. (see image #1) This is the summary table for the ANOVA test: S.S. d.f. M.S. Between 22.612239583333 3 7.5374131944444 Within 198.05895833333 188 1.0535050975177 TOTAL 220.67119791667 191 From this table, you obtain the necessary statistics for the ANOVA:F-ratio: 7.154605338127p-value: 0.00014η2=η2= 0.10247028065653What is your final conclusion? Use a significance level of α=0.01α=0.01. There is a significant difference between treatments These data do not provide evidence of a…MARKET CAPITALIZATION is taken as a variable to be predicted, the rest are the predictors Create the following variables in the excel sheet: 1. Change Total Assets to ‘Log(Total Assets)-LogTA, 2. create a new variable called CR (CR= current assets/current liabilities), 3. Create a new variable called DR (DR= Total Debt/Total Asset), 4. Change Market Capitalization to Log(Market Capitalization)-LogMCAP Focus on LogMCAP, LogTA, CR, DR, EBIT, LogMCAP to be predicted, the rest are predictors for the purpose of completing the assignment. 1. Perform a descriptive analysis in R , using the variables given . 2. Design a structure to show the training data, testing data, and discuss the validation process using your dataset. 3. Perform a regression analysis, show the clearly and discuss on the predictive power using the forecast figures and coefficients. 4. You may include scatter plots to address the significance of the predictors, OR extend your analysis by using other statistical…
- A survey of consumers who had recently purchased their first smartphones sought to identify how much these consumers knew about using smartphone technology. The findings were as follows: 90% could connect to the Internet, 80% could download an app, 55% could use Bluetooth, 44% had set up their phones to receive e-mail, and 5% knew only how to make and receive voice calls and texts. Present this data graphically.In a study, the effects of the mane of a male lion as a signal of quality to mates and rivals was explored. Four life-sized dummies of male lions provided a tool for testing female response to the unfamiliar lions whose manes varied by length (long or short) and color (blonde or dark). The female lions were observed to see whether they approached each of the four life-sized dummies. Complete parts (a) through (e) below. a. Identify the experimental units. Choose the correct answer below. The female lions The male dummies The mane colors The mane lengths Part 2 b. Identify the response variable. Choose the correct answer below. A. Whether or not (yes or no) the mane length affected how the female lions reacted to a male dummy. B. Whether or not (yes or no) the female lions approached the same dummies. C. Whether or not (yes or no) the female lions approached a male dummy. D. Whether or not…Jennie makes the first quartile salary for a construction worker. markos makes the first quartile salary for a receptionist who makes more money?