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- Find the mean hourly cost when the cell phone described above is used for 240 minutes.The following data gives the profits of a firm (in lakh dollars). Interpolate the missing figures. 1950| 1955 7? 1960 13 year 1965 1970 1975 Profits (in lakhs $.) 15 ? 25JOYFUL Fashion Company is reviewing the monthly sales in year 2021. The monthly sales (in millions) of each month were as below: Jan: $2.2 Jul: $3.4 Feb: $2.5 Aug: $3.7 Mar: $2.0 Sep: $2.1 Apr: $2.8 Oct: $2.5 Мay: $1.9 Nov: $2.3 Jun: $0.9 Dec: $4.6 (d) It is known that the average monthly sales from Jul 2020 to Dec 2020 were $1.9 millions. Find the average monthly sales from July 2020 to Dec 2021. (e) Are the JOYFUL Fashion Company sales increasing / decreasing? Explain your answer by comparing the half-yearly average monthly sales. (i.e. Jul 2020 to Dec 2020; Jan 2021 to Jun 2021; Jul 2021 to Dec 2021)
- JOYFUL Fashion Company is reviewing the monthly sales in year 2021. The monthly sales (in millions) of each month were as below: Jan: $2.2 Jul: $3.4 Feb: $2.5 Aug: $3.7 Mar: $2.0 Sep: $2.1 Apr: $2.8 Oct: $2.5 Мay: $1.9 Nov: $2.3 Jun: $0.9 Dec: $4.6 (a) Find the mean, mode, standard deviation, and range of the above data. (b) Comment on the skewness of the above data. Explain your answer with the comparison of quartiles. The JOYFUL Fashion Company will issue a Gold Membership to customers with accumulated spending in January 2022 over 1% of 2021's average monthly sales and a Platinum Membership to customers with accumulated spending in January 2022 over 1% of the 80th percentile of 2021's monthly sales. (c) Mrs. Robinson has spent $27,450 in January 2022. Will she be qualified for the Gold Membership? Will she be qualified for the Platinum Membership? Explain your answers. (d) It is known that the average monthly sales from Jul 2020 to Dec 2020 were $1.9 millions. Find the average…Find out the next month after april income by using the forecasting method of the moving average methodJohn Kittle, an independent insurance agent, uses a five-year moving average to forecast the number of claims made in a single year for one of the large insurance companies he sells for. He has just discovered that a clerk in his employ incorrectly entered the number of claims made four years ago as 1,400 when it should have been 1,200.a. What adjustment should Mr. Kittle make in next year’s forecast to take into account the corrected value of the number of claims four years ago?b. Suppose that Mr. Kittle used simple exponential smoothing with a = .2instead of moving averages to determine his forecast. What adjustment is now required in next year’s forecast? (Note that you do not need to know the value of the forecast for next year in order to solve this problem.)
- The cost for board exam review services costs P11500, P11750, and P11250 for years 2018, 2019, and 2020 respectively. What is the range (in %) for this data?Import Illinois.xls as a table. Using logical indexing to select the years with more than 2800 cases of Diabetes. Then plot all of the data on the same axis. F1 fx Homicide B C E Year Accidents Cancer Diabetes Heart Disease Homicide| Suicide 1999 4125 25024 3004 33387 1023 1020 3 2000 4041 25365 2995 31844 991 1003 4. 2001 4077 24778 3092 30990 1087 1139 2002 4222 24737 3011 30821 1016 1145 2003 3942 24464 3044 29816 966 1011 7. 2004 4133 24289 3069 28284 871 1028 8. 2005 4182 24250 3034 28226 866 1086 9. 2006 4451 24084 2795 27007 865 1010 10 2007 4367 24115 2851 25813 863 1108 11 2008 4218 24300 2846 26078 872 1198 12 2009 3961 24185 2741 24931 881 1177 13 2010 3997 24070 2507 24959 783 1178 14 2011 4166 24007 2693 24987 812 1226 15 2012 4488 24562 2706 24667 832 1292 16 2013 4511 24491 2798 17 24839 792 1321 2014 4644 24501 2712 18 25024 792 1398 2015 4850 24713 2817 25652 19 863 1363 20 21(b) Estimate the standard errors of the slope and intercept. Round your answer to three decimal places (e.g. 98.765) se B, Round your answer to two decimal places (e.g. 98.76) se(bo ) = I (c) Test the hypothesis Ho: B1 = 10 versus H1:ß1 + 10using a = 0.01. v Họ and conclude the slope 10 at a = 0.01. (d) Test the hypothesis Ho: Bo = 0 versus H1: Bo # 0 using a = 0.01. Họ and conclude that the intercept v be included in the model.
- 1937 -3.8 1938 3.3 1939 4.6 1940 4.5 1941 5.4 1942 2.9 1943 -0.6 1944 4.1 1945 4.8 1946 4.4 1947 0.5 1948 3.4 1949 -1.4 1950 -6.3 1951 2.5 1952 1.7 1953 5.9 1954 0.5 1955 3.6 1956 3 1957 -1.1 1958 6 1959 3.8 1960 2.7 1961 4.9 1962 2.9 1963 0.7 1964 4.5 1965 2.1 1966 2.9 1967 4.5 1968 3.8 1969 -2.9 1970 3.1 1971 2.2 1972 0.7 1973 2.3 1974 2.6 1975 2.4 1976 4.3 1977 2.3 1978 3.5 1979 0.2 1980 0.5 1981 5.5 1982 1.9 1983 6.3 1984 4.4 1985 1.5 1986 6.1 1987 4.4 1988 3.5 1989 3.5 1990 4.4 1991 1.6 1992 5.8 1993 -0.4 1994 6.3 1995 4.5 1996 2.9 1997 3.9 1998 4.5 1999 5 2000 3.5 2001 5.1 2002 4.2 2003 6.4 2004 4.1 2005 3.7 2006 6.3 2007 3 2008 2.8 2009 2.1 2010 7.2 2011 4.2 2012 3.6 2013 2.8 2014 4.4 2015 5.6 2016 4.7 2017 1.9 2018 5.4 2019 5.8 Find question 12The following table is a selection of average prices for a gallon of gas in the United States. Year Gas Price Index Value 2001 [A] 2003 [B] 2004 2018 [A] = Build an index from these values, using 2003 as the base year. Round each index value to the nearest tenth. [B] = = [C] = $1.42 $1.56 $1.85 $2.72 [D] = [C] [D]Data on income (in thousands of dollars), education (years), experience (years), and age (years) for twenty people are shown here;