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Critically illustrate out the purpose of developing frequency distribution? Describe the relationship between the relative frequency and the cumulative frequency.
Determine the probability that none of the calculators will be defective?
A sample of 120 homes sold recently in a big city gave the mean price of homes equal to $270,000 and the standard deviation equal to $70,000. (a) What is the point estimate of the mean price of all homes in the big city?
Using the menu systems, request descriptive statistics (mean, s.d. and variance) for both your original variables
A physician wanted to estimate the mean length of time µ that a patient had to wait to see him after arriving at the office.
If we wanted to shorten the interval of the estimation of the true mean of Saturday sales to a width of $600 in total, what should the size of our sample be to achieve it?
Binomial distribution to find out the mean also standard deviation. Variance and standard deviation of a lot of 300 calculators.
The error between the sample mean and the population mean for a sample of n = 16 is 5 points and the error between a sample men and population mean for a sample of n = 100 is 2 points. Explain the difference in the standard error??
Suppose that population has normal distribution. Determine a 95 percent confidence interval for population standard deviation sigma.
If a card is drawn at random from a standard 52-card deck, what is the probability that the card drawn is one of the following?
Given the following raw scores, calculate the following values: Range, Variance and Standard Deviation, show your calculations: Scores: 9, 7, 8, 4, 8, 8,7, 8, 9, 6, 3
At.01 significance level, is there relationship between job pressure and age?
Calculate (a) MAD, (b) MSE, and (c) MAPE for the following forecast versus actual sales figures.
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