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You measure the weight of 5 small birds for two years, these are the results:Bird year 1 year 21 512 5002 510 4903 508 4974 513 4835 507 480
Assume normal distribution and a 5% level of significance do a hypothesis test and calculate if the standard deviation is different between the years.
Single group post-test and internal validity threats - Answer the question either by writing the design name or by describing the design using standard notation
If the estimate is to be within 8 mpg of the true mean with 98% confidence and the estimated standard deviation is 22 mph, how large a sample size must be taken?
How many independent network servers would be needed if each has 99 percent reliability? (b) If each has 90 percent reliability?
If they enroll this many pupils, how much would they need to charge per pupils in order to realize their profit goal of $5,000.
If the sum of squares regression is 1,000 and the sum of squares total is 5,000. Given that the sum of squares residual (or error) is 4,000 what is the r-squared value?
the following sample was obtained from a population with unknown parameters.scores 612034.a. compute the sample mean
Based on this confidence interval, can we be 95% confident that the mean yield using catalyst XA-100 exceeds 750 pounds per hour? Why?
Discuss the concepts of independent and dependent events. Provide examples of independent and dependent events from the business environment.
A regression of attitude toward legalizing marijuana on age (X1) and education (X2) produced the following estimated coefficients and standard errors for a sample of 265 persons.
Suppose that the probability that a new medication will cause a bad side effect is 0.03. If this medication is given to 150 people, what is the probability that exactly three of them will experience a bad side effect.
A sample size of 900 is not large enough to conclude that the sampling distribution of p is a normal distribution, when the estimate of the population proportion is 0.995 and the standard deviation of all possible sample proportions increases as th..
A study of the scores on an in-plant course in management principles and the years of service of the employees enrolled in the course yielded the following statistics.
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