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At a western hospital there were a total of 932 births in 20 consecutive weeks. Of these births, 216 occured on weekends. Based on these data, are birth rates dfferent on weekends abd week days?
a) State the null and alternative hypotheses for the test
b) Name two statistical methods that could be used to test the hypothesis. State the advantages and disadvantages of both
c) Carry out a hypothesis test to address this question. State your conclusion clearly
Also find information about blood donations and the percentage of each type donated. How do the charts compare? Why is the collection of type O blood so important?
What's The POPULATION of interest to the American company?
the file danish coffee contains a random sample of 144 danish coffee drinkers and measures the annual coffee
What size sample would be required to estimate the proportion of unemployed college students if we want the margin of error not to exceed 3 percent?
is ultrasound a reliable method for determining the gender of an unborn baby? there is accompanying data on 1000 births
what is the probability of completing the exam in one hour or more? what is the probability that a student will complete the exam in more than 60 minutes but less than 75 minutes?
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?
If it takes a colony of termites one day to devour a block of wood that is 2 inches wide, 2 inches long, and 2 inches high, then how long will it take them to devour a block of wood that is 4 inches wide,
Lead-time demand is 600 pounds. The standard deviation of lead time demand is 52 pounds. Supposing the lead time demand is normally distributed and that an acceptable risk of stocking out is 4%:
Find the mean, median, mode, variance, standard deviation, frequency table, cumulative frequency table, coefficient of variation, and mean deviation of the population.
It has been evaluated that 30% of all farms are family-owned. In sample of 12 farms, determine the probability that exactly 3 farms are family owned?
At the .01 significance level, can we conclude that there is more variation?
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