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Daily kilograms of horse cobs and pellets (in kilograms) are noted for a sample of 11 Indian rhinoceri, along with information on gender (M or F):30
a. Use software to produce a confidence interval for the difference between population mean kilograms consumed for males minus females.
b. Carry out the appropriate hypothesis test if we suspect males tend to eat more in general; report the P-value.
c. Can we conclude that male rhinos eat more in general than females eat?
d. Suppose amounts of cobs and pellets provided will be tailored to the two sexes in the future if a significant difference is found in the mean amounts consumed. Should this change be implemented?
The following data shows the packages gathered for delivery for ten days and the proportion of packages received not delivered to the customers at expected time.
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the average life expectancy of tires produced by the whitney tire company has been 40000 miles. management beliveves
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Suppose a population can be approximated by a normal model with expected value μ = 50 and standard deviation σ = 9.8. Find the probability that a random sample of size 4 has a mean x between 47.8 and 53.7.
What is the point estimate of the difference between the population means? What is the 95% confidence interval estimate of the difference between the population means?
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