10- 8 - 6 6 - 4 2 2- 0+ 4.8 7.2 8.4 9.6 Histogram (Frequency Diagram) Frequency
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A: Given information, UCL=0.2002 LCL=0.1918 mean=0.1985 s=0.001392 n=240
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- statistic,time seriesThe median incomes of males in a random sample of 30 states of the United States, including the District of Columbia and Puerto Rico, are given in the table below ('Median income of,' 2013). Create a frequency distribution and a relative frequency distribution using 7 classes. a) Since data were collected for variable(s), the correct graph to make is a b) Using the formula class width = (maxX - minX)/(number of classes) and rounding up to the next whole number, the class width is Complete the frequency/relative frequency table using 7 classes. Round relative frequencies to 3 decimal places. c) Which of the following is the correct histogram for the given data?A sided die is rolled 120 times. Fill in the expected frequency column. Then conduct a hypothesis test at the 5% level to determine if the die is fair. The data below are the result of the 120 rolls. (Enter exact numbers as integers , fractions , or decimals .)
- Chebyshev's Theorem states that for any set of numbers, the fraction that will lie within k standard deviations of the mean is at least 1−1/k2. Use this theorem to find the fraction of all the numbers of a data set that must lie within 2 standard deviations from the mean. At least ? of all numbers must lie within 2 standard deviations from the mean. (type a fraction)3, 3, 4, 6, 6, 8, 9, and 10. Compute the mean of these test scores to the nearest 0.01.how to compute a z score with table
- Chebyshev's theorem states that for any set of numbers, the fraction that will lie within K standard deviations of the mean is at least 1-1/k^2. Use this theorem to find the fraction of all the numbers of a data set that must lie within 3 standard deviations from the mean. At least____of all numbers must lie within 3 standard deviations from the mean. ( Type an integer or a fraction)The relative frequency associated with a particular class in the population is the fraction of measurements in the population falling in that class. True FalseI need help with; Calculate the class width if a frequency distribution was created using five (5) classes. Use proper rounding as described in the textbook.
- How central limit theorem, the law of large numbers, and Slutsky’stheorem is applied to t-Statistic Based on the Sample Mean?Assume that the weights of trout in a river are normally distributed. You randomly catch and weigh 20 such trout. The mean weight from your sample is 7.3 lb with a standard deviation of 0.9 lb. Test the claim that the mean weight of trout in this river is greater than 7 lb at a significance level of 0.01. Be sure to clearly identify your work, using appropriate notation at each step of the process, and summarize your final result in a complete sentence.Compute the mean of these numbers: 12, 18, 12, 12, 18, 12, 18, 18, 18, 12 (hint: use weighted mean formula)