The year-end dividend yields (%) for a sample of 48 top-performing stocks are shown in the table below: 5.5 5.0 2.7 5.8 3.8 5.5 4.3 3.7 4.7 4.9 4.6 3.6 5.5 3.8 3.0 4.0 3.3 5.5 2.5 4.3 5.9 5.6 4.2 5.6 3.6 4.4 3.7 2.6 2.5 to 3.0 a. Fill in the following frequency table using the data. Dividend Yield Frequency SUBMIT QUESTION 4.9 3.0 5.9 4.9 0 2.9 3.4 80 m 3.8 4.3 4.3 2.5 3.9 3.2 3.1 3.8 3.7 4.9 4.1 4.5 5.7 3.9
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- Suppose the actual sales and the forecasted, or smoothed sales, for the past 5 months have been Actual Smoothed 54.4 76.8 54.4 75.5 72.3 53.2 74.8 39.2 57.6 What is the Mean Square Error of the smoothed series? (please round your answer to 1 decimal place)A. Yes, the distribution is symmetric with a mean age of 36. B. No, the distribution is skewed to the right with a mean age of 36. C. No, the distribution is skewed to the right with a mean age greater than 36. D. No, the distribution is skewed to the left with a mean age of 36. E. No, the distribution is skewed to the left with a mean age greater than 36.. The share prices of a company in Mumbai and Kolkata markets during the last 10 months are recorded below: Month Mumbai Kolkata January 105 108 February 120 117 March 115 120 April 118 130 May 130 100 June 127 125 July 109 125 August 110 120 September 104 110 October 112 135 Determine the arithmetic mean and standard deviation of prices of shares. In which market are the share prices more stable?
- For the past 16 years, the yields of wheat (in tons) grown on a plot at Rothamsted Experimental Station (England) are shown below. The sequence is by year. 3.1 1.6 0.7 1.8 2.1 3.4 3.6 1.2 2.5 2.4 2.9 2.2 2.3 2.8 1.7 1.6 Use level of significance 5% to test for randomness about the median. (a) State the test used. sign test rank-sum test spearman correlation test runs test answer: runs test (b) Give ?. answer: 0.05 (c) Find the sample test statistic. (d) For the sign test, rank-sum test, and Spearman correlation coefficient test, find the P-value of the sample test statistic. For the runs test of randomness, find the critical values from Table 10 of Appendix II. c1 c2A survey of the average amount of cents off that coupons give was done by randomly surveying one coupon per page from the coupon sections of a recent San Jose Mercury News. The following data were collected: 15; 70; 55; 65; 30; 55; 40; 40; 30; 55; $1.50; 40; 65; 40. Assume the underlying distribution is approximately normal. sx = n = n − 1 =When is your sampling distribution normal? When your data non-normal and your N<50 When your data is normal and you N<10 When your data non-normal and your N>50 when your data has an infinite mean and N>500
- Assume monthly returns of 1%, -2%, 3% and 1%. What is periodic arithmetic mean, geometric mean, standard deviation, skew and kurtosis? What are the annualized values of each statistic?Estimate the mean deviation from the arithmetic mean of the following set of examination marks; Marks 0-9 10-19 20-29 30-39 40-49 50-59 60-69 70-79 No of Students 2 3 8 24 27 40 11 5The following data give the numbers of computer keyboards assembled at the Twentieth Century Electronics Company for a sample of 25 days. 57 58 59 62 63 63 61 62 68 68 69 69 72 70 66 67 67 68 60 60 64 64 64 65 66 Determine the (approximate) value of the 53rd percentile. Round your answer to the nearest integer. The approximate value of the 53rd percentile is Enter your answer in accordance to the question statement .
- Calculate the 95% margin of error in estimating a binomial proportion p using samples of size n = 200 and the following value for p. (Round your answer to four decimal places.) p = 0.95Suppose that insurance companies did a survey. They randomly surveyed 450 drivers and found that 310 claimed they always buckle up. We are interested in the population proportion of drivers who claim they always buckle up.NOTE: If you are using a Student's t-distribution, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.) (i) Enter an exact number as an integer, fraction, or decimal. x = (ii) Enter an exact number as an integer, fraction, or decimal. n = (iii) Round your answer to four decimal places. p' = (rounded to four decimal places) Which distribution should you use for this problem? (Round your answer to four decimal places.) P' ~ ,The annual percentage returns on common stocks over a 7-year period were as follows:4.0% 14.3% 19.0% -14.7% -26.5% 37.2% 23.8%Over the same period the annual percentage returns on U.S. Treasury Bills were as follows:6.5% 4.4% 3.8% 6.9% 8.0% 5.8% 5.1%a. Compare the means of these two population distributions.b. Compare the standard deviations of these two population distributions.