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The probability that a randomly selected pregnancy lasts less than 149 days is approximately .3821. So the probability that the mean of a random sample of 21 pregnancies is less than 149 days is approximately? (round to 4 decimals as needed)
For the following population of N=10 scores 14,6,8,3,9,12,1,6. Draw the histogram showing population distribution. Locate value of population mean in your sketch and make estimate of standard deviation.
Hypothesis summary on The feasibility of hiring more employees when production increases instead of offering overtime pay to existing employees.
computing the probability values using normal distribution.laboratory rats commit an average of micro 40 errors before
What is the probability that among 10 true hypertensives at least 50% are being treated appropriately and are complying with this treatment?
Suppose a doctor uses the average x bar for two tests taken about a week apart. what is the probability of x bar less than 3500? C. Repeat part B for n = 3 tests taken a week apart.
question the calculations for a factorial experiment involving four levels of factor a three levels of factor b and
The number of defects per foot Y is assumed to have a Poisson distribution with mean = 2. i) What is the probability of observing 3 defects in 4 feet of wire?
Determine which variable is the dependent variable.
What is the average annual income of a female with 8 years of eduction and 20 years ofworking experience? What about a male of the same condition?
Assume that a study of 500 randomly selected school bus routes showed that 480 arrived on time. Is it "significant" for a school bus to arrive late?
What is the probability that the percentage in the sample will deviate from the population percentage by no more than 7 percentage points?
Find the critical value having an area of 0.95 to its right for an F-curve with 8 numerator degrees of freedom and 15 denominator degrees of freedom.
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