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Does random sampling guarantee that the sample chosen will be representative of the population?
Make a point estimate and a 95% confidence interval estimate.
samples and statistical inferencestatistics deals with data. the quality of statistical inference depends on the
if random sample size is n=25 are selected from this population, what proportion of sample means will have values between 37 and 43.
Which ones are testable and which ones are not testable? Select one claim and develop the null and alternate hypotheses and suggest a possible method of testing the hypothesis and measuring your concept.
Customers enter the waiting line at a cafeteria on a first-come, first-served basis. The arrival rate follows a Poisson distribution, while service times follow an exponential distribution.
Which of the following models are appropriate to forecast a time series whose amplitude increases over time?
What is the probability that the investment property selected is worth less than $400,000 and what is the probability that the investment property selected is worth between $450,000 and $600,000?
Sensitivity of 0.98 and false-positive rate of 0.01. Calculate and interpret meaning of PV+, if test is used in the population which has the disease prevalence of 0.001.
Muscular dystrophy is an incurable muscle-wasting disease. The most common and serious type, called DMD, is caused by a sex-linked recessive mutation. Specifically; women can be carriers but do not get the disease; a son of a carrier has probabili..
The probability that Traci Muldone will die during the 10-year term of a life insurance policy is assessed by the insurance company at 1/5. Arthur Average's probability of living to the end of the 10-year period is reckoned at 95%
The average service time at CheesePlate Restaurant is 3.5 minutes with a standard deviation of .04 minutes. A new order system claims it can improve service time
a die is rolled twice. let x denote the sum of the two numbers that turn up and y the difference of the numbers
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