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i need question 3 answered, i already have 1&2, i just needed to upload the whole pic so you know the actual question.
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- A sales analyst wants to determine whether there is a difference in the mean monthly sales (RM) of a cosmetic company’s four sales regions in Johor. Several salespersons from each region are chosen and their monthly sales were recorded asbelow: BatuPahat Muar Kota Tinggi Johor Bahru4250 3930 3960 43503980 4010 4020 44504020 4050 4130 38804130 4220 4350 45744050 4177 3890 4130 LOOK AT THE 2 PHOTOS. a) Identify dependent and independent variable. b) Determine the suitable design for this situation. c) Compute the homogeneity of the variance. d) Use α = 0.05 level of significance to test the hypothesis that different regions have no effect on the monthly sales.Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. Companies that produced movies in 2007 Choose the correct answer below. A. The ordinallevel of measurement is most appropriate because the data can be ordered, but differences (obtained by subtraction) cannot be found or are meaningless. B. The intervallevel of measurement is most appropriate because the data can be ordered, differences (obtained by subtraction) can be found and are meaningful, and there is no natural starting point. C. The nominallevel of measurement is most appropriate because the data cannot be ordered. D. The ratiolevel of measurement is most appropriate because the data can be ordered, differences (obtained by subtraction) can be found and are meaningful, and there is a natural starting point.Find the mean, median and mode. Thanks. Distance of Residential house of Elizabeth Velasquez from Khairro Sanford Distance(km) Number of Houses 29-34 9 23-28 10 17-22 15 11-16 13 5-10 12
- A quantitative data set has been grouped by using cutpoint grouping with equal-width classes. a. If the lower and upper cutpoints of the first class are 5 and 15, respectively, what is the common class width? b. What is the midpoint of the second class? c. What are the lower and upper cutpoints of the third class? d. Which class would contain an observation of 32.4?Do the paired t-test for the following crushed and uncrushed nuts data and then interpret it.Compute the mean, median, and mode of the data sample. (If every number of the set is a solution, enter EVERY in the answer box.) 3, 1, 7, −4, 0, 5 mean median mode
- The employees of a small business were surveyed to find the time they normally spend commuting to work, one-way. The times, in minutes, are shown in the table below. Use the median procedure for finding quartiles to find the first, second, and third quartiles ( , , and ) for the data. One Way Time to Work (minutes) 19 19 19 19 2B. The best predicted circumference for a diameter of 1.9 cm is___cm. C. How does the result compare to the actual circumference? Since1.9 cm is within the scope of the sample diameters, the predicted value yields the actual circumference. Even though 1.9 cm is within the scope of the sample diameters, the predicted value yields a very different circumference. Since1.9 cm is beyond the scope of the sample diameters, the predicted value yields a very different circumference. Even though 1.9 cm is beyond the scope of the sample diameters, the predicted value yields the actual circumference.Suppose a realtor wants to determine the current percentage of customers who have a family of five or more. How many customers should the realtor survey in order to be 98% confident that the estimated (sample) proportion is within 2 percentage points of the true population proportion of customers who have a family of five or more? z0.10 z0.05 z0.025 z0.01 z0.005 1.282 1.645 1.960 2.326 2.576 Use the table of values above.
- Ministry of economic development conducted a survey to determine why people go to trade shows. The respondents were asked to rate a series of reasons on a scale from 1 to 5, with 1 representing little importance and 5 representing great importance. One of the reasons suggested was general curiosity. Responses for 50 people from the electronics industry results in a sample mean of 1.96 and 50 people from the food industry results in a sample mean of 3.02 for general curiosity. Use the data and α = 0.01 to determine whether there is a significant difference between people in these two industries on this question. Assume the variance for the electronics population is 1.0188 and the variance for the food population is 0.9180. Clearly state your null and alternate hypothesis. State the decision rule. Show the calculation of the test statistic. Give your answer to 2 decimal places where appropriate. State the statistical conclusion and explain the result in context of the question.For the seven countries, calculate the mean, range, interquartile range and standard deviation of death by suicide and death by homicide. Which appears to affect more of the population, homicide or suicide? Is fire-arm homicide more dispersed relative to fire-arm suicide? Write a few sentences to interpret your findings. Country Homicide Suicide Honduras 60 66.64 Venezuela 49.22 26.48 El Salvador 45.6 26.49 Guatemala 34.1 29.62 Jamaica30.72 30.38 0.34 Brazil 21.9 20.7 0.5 Colombia 18.65 17.74A competency test is modified so that the proportion of test-takers that pass is more than 75%. A simple random sample of test-takers is collected to determine if the proportion of passers is greater than 75%. The results of the sample are shown below. Number passed = ____________ Sample proportion p^=__________________