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1. A random sample consisted of 36 patients, the mean of their pulse (sphygmus) is 78 times/min, and sd 6 times/min. a) Calculate the 90% confidence interval for the population mean of health men's pulse (sphygmus) in mountainous area. b) Can you conclude that the mean is significantly higher than 72 times /min (Which is the mean of pulse of health men)? 2. Suppose you survey 81 adult American males and record a mean weight of 194 pounds. The sample standard deviation is 35 pounds. a) Please construct a 95% confidence interval for the population mean. b) Suppose a prominent doctor contends that adult American males have a population mean weight of 220 pounds. Does the sample evidence support the doctor's hypothesis? Note: Please write down the detail steps for the hypothesis test
A recent study at a local college claimed that the proportion of students who commute more than fifteen miles to school is no more than 25%.
The distribution of IQ scores is normal, what proportion of the population would score higher than Bob? Lower than Bob?
At the .05 significance level, is there a difference in the proportion of viewers watching the three channels?
How could your answer to part (A) change if you knew returns followed a skewed distribution instead of a normal distribution? Explain.
if random sample size is n=25 are selected from this population, what proportion of sample means will have values between 37 and 43.
Prepare a report with your rankings of the judges. Also include an analysis of the likelihood of appeal and case reversal in the three courts. At a minimum, your report should include the probability of cases being appealed and reversed in the thre..
A certain medication is known to increase the pulse rate of its users. The standard deviation of the pulse rate is know to be 4 beats per minute. A sample of 40 users had an average pulse rate of 98 beats per minute. Find the 95% confidence interv..
A restaurant claims that its speed of service time is less than 18 minutes. A random selection of 36 service times was collected, and their mean was calculated to be 17.7 minutes.
Choose any medical scientific study who applied a Bayer Theorem and write down the article information (title, author, location, and date) of the article
LINEAR PROGRAMMING MODELS
The average price for a new home in a certain neighborhood is $275,000 with a standard deviation of $20,000. What is the probability that a particular home will cost between $280,000 and $300,000?
An American put option to sell a swiss franc for dollars has a strike price of $0.80 and a time to maturity of one year. The volatility of the swiss franc is 10%
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