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A random sample of 25 birds has been selected from a large population of kiwis from the north island. The mean height of the sample is 50 cm with a standard deviation of 8 cm. set up a 95% confidence interval estimate for the mean height of the bird population. (Hint: table value for t(95%, df 24)is 2.064)
1 the blood groups of 200 people is distributed as follows 50 have type a blood 65 have b blood type 70 have o blood
Compute the mean and standard deviation for the sample data in the file Drug$.
What is the probability that the total number of customers who enter the supermarket in one day is greater than 11700?
please provide an example and explination fo the followinga point estimates vs. interval estimates. interpreting
Determine the proportion of homes that have a pool. At the .05 significance level, can we conclude that less than 40 percent of the homes sold in the Denver area had a pool? What is the p-value?
20 students in a class - if there is a 15% probability that a randomly chosen member has seen a particular movie - what is the expected number of students have seen the movie?
TIPL is a manufacturer in Ottawa, Ontario and specializes in sports memorabilia. Their specialty is to make 3-D images of past and present athletes used as promotional giveaways. TIPL started as a 2-perspon company owned and operated by Anthony an..
A student has determined it takes an average of 16 minutes to drive from home, park the car, and get to class with a deviation of 4 so if it took the student 25 minutes what will the standard deviation be?
Calculation of the Probability of Increase in Income and Wealth and Increase in Happiness
A central university has a student population of 60,000. The university is interested in determining what proportion of them is in favour of a new grading system.
1. The president of State University wants to forecast student enrollment for Year 3. Using exponential smoothing with trend, the forecast for the current year (Year 1) is 20,000.
Do you think that all random samples taken from the same population will lead to the same result?
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