Example 6.19 From the data given in the following table, find out which of the two series is more consistent? Variable 10-20 20-30 30-40 40-50 50-60 60-70 Series A 10 16 34 38 24 18 Series B 18 22 38 34-05 20 8
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- 37 - The more than cumulative series graph of a classified frequency series is given below. What is the standard deviation value of the classified series?A) 44.39B) 44.16C) 43.61D) 45.42E) 43.17Question 6 A researcher wishes to test the claim that on average more juvenile than adults are classified as missing persons. Records of the last five years are shown. At α = 0.05 is there sufficient evidence to support the claim? Juveniles: 65,513 65,934 64,213 61,954 59,167 Adults: 31, 364 34,478 36,937 35,946 38,209 a. Formally state (write in symbols) the hypotheses b. Is this a univariate or a bivariate analysis? Can you state it in terms of dependent and independent variables? Using the Computer printout below answer the following question: c. What is standard error of the difference under the assumption of variance equality? __________ ___________ d. What is the value of the t statistic under the assumption of equality of variances. e. What is the value of difference between the means under the assumption of equality of…The Power Series
- QUESTION 8 You may need to use the appropriate appendix table or technology to answer this question. Consider a binomial experiment with n = 20 and p = 0.70. (Round your answers to four decimal places.) (a) Compute f(12). f(12) = (b) Compute f(16). f(16) = (c) Compute P(x ≥ 16). P(x ≥ 16) = (d) Compute P(x ≤ 15). P(x ≤ 15) = (e) Compute E(x). E(x) = (f) Compute Var(x) and σ. Var(x) =σ=24 - Arithmetic mean of the grouped grade series ? = 3.52 points andstandard deviation σ = 1.6 points. On the other hand, since the Group Mode M o = 3.6 points, calculate a measure of (Pearson) asymmetry based on averages.A) -0.73 B) -0,05 C) 0.05 D) -3.3 E) 4.8Which one of the following components represents the basic tendency of the series? a. Secular Trend b. Seasonal Variations c. Cyclic Variations d. Irregular Variations
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