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"My Bank" opens a branchin a commercial district. The bank wants to find out the waiting time of their customers during the Friday evening hours from 5pm to 8pm. Accordingly, the waiting time is recorded for all customers during these hours over a month. A random sample of 20 customers is selected; the waiting time, in minutes, is shown below:
9.50 5.0 8.02 6.00 3.40
8.33 8.35 10.49 5.32 4.08
9.20 5.40 6.17 3.00 2.32
8.35 8.02 6.00 5.15 9.00
Using the data in ungrouped form, compute the Standard Deviation, using the computational formula.
What are the minimum and the maximum starting salaries of the middle 95% of the LU graduates?
Compute fraction of the employees cost between $1,500 and $2,000 per year? Evaluate percent that didn't have any dental expense.
Mention the critical value of test statistic (Or give the p-value of the test.)
A process follows the binomial distribution with n = 8 and p = .3. Find
A recent study reported that the prevalence of hyperlipidemia (defined as total cholesterol over 200) is 30% in children 2-6 years of age. If 12 children are analyzed,
What is the probability she received 5 or more email during the same period?
A random sample of 20 vice presidents of Fortune 500 firms is taken. The amount each vice president paid in federal taxes as a percentage of gross income is determined.
Use technology to find the estimated minium required sample size. The minimum sample size required is ? Computer users round to the nearest whole number. What is a major obstacle to getting a good estimate of the population mean?
Describe the types of probability -example of classical probability, empirical probability, or subjective probability.
Using given data table, find out midpoint for class with greatest frequency?
What is the probability of a false negative test (the probability that a person having muscular distrophy tests negative)?
Create a 95% confidence interval for the population mean days absent for sickness based on this sample. Select the answer closest to your results.
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