Confidence interval for the mean length
Someone wonders if movies are too long. A random sample of 45 releases had a mean length of 112.1 minutes and a standard deviation of 22.4 minutes. Construct a 99% confidence interval for the mean length of all recently released movies.
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Suppose that the data has the normal distribution and number of observations is greater than fifty. Find out the critical z value employed to test a null hypothesis.
The mean temp in the LA is 66.3 degrees F with the standard deviation of 8 degrees F. The temp readings are usually distributed. Determine the probability the temp in LA is greater than 85.2 F any given day.
Consequently, the designers want to know the minimum sample size needed so that observing K or fewer defectives in the sample will demonstrate that the true probability of failure for the one-shot device is no greater than p.
The production foreman for the Florida fruit company determines that the average sale of the oranges is 4,700 and the standard deviation is 500 oranges. Sales follow the normal distribution. What is the probability that sales will be less than 4,3
Make a 95% confidence interval estimate of the population mean rating for Miami. Enter your answer using parentheses and a comma, in the form (n1, n2).
For a t distribution with 16 degrees of freedom, find the area, or probability, in each region.
Come up with an expression that the probability of Z will still be null after this. At the end of this procedure, what is the expected size of Z?
Suppose the random variable X is best described by a normal distribution with mean= 150 and standard deviation= 15. Find the values of x such that
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A 2016 survey of undergraduate students considered this further and found that compared with students that did not use cannabis at least once
Problem: An infant with known congenital heart disease presents with weight loss, tachypnea, and hepatomegaly.
For a research topic on evaluating the access to health services for commercial sex workers as a mixed method approach provide the methodology
The healthcare provider ordered a urine culture for a client. Which item would a nurse need for a urine specimen collection from an existing indwelling
The nurse practitioner (NP) evaluates a client with complaints of a burning sensation in the chest that often occurs after meals and is exacerbated
I am writing a dissertation topic on the utility of community based interventions in post exposure support to survivors of IPV in uMzingwane district
A 12-month-old child presents with fever of 100.9, lethargy, vomiting and tachypnea. The history is significant for recent hand-foot-mouth disease infection.