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Average night's sleep is 6.8 hours. Assume the probability distribution of the sleep time to be normal with a standard deviation of .8 hours.
What is the probability that the random person gets more than 8 hours?
Develop a frequency distribution table with proportions. What is an experiment? Can you describe what a Group Frequency Distribution Table is and what it looks like?
Percentage distributions are useful in comparing two frequency distributions having different total frequencies. Construct percentage distributions from the following two frequency distributions and determine whether the distributions of daily ab..
Named let'' is a variant of let that has the form he and are just as in ordinary let, except that is bound within to a procedure whose body is and whose parameters are the variables in the. Thus, one can repeatedly execute the by invoking ..
Suppose a small bicycle manufacturer makes cheap bikes that sell for 180$ each. The total cost of producing x bikes (in $) is given by c(x)=6000+240x-0.8x^2, where x is up to 200 bikes.
If we fit the least-squares line to the 12 data points (one for each month) we obtain the following results from a software package. Notice that temperature is taken as the explanatory variable and crawling age as the response.
Art therapy is a common tool to use with children who have a hard time bonding with a therapist and opening up during therapy sessions. Dr. Contos wants to examine if children who participate in art therapy (M.48, SD.67) score lower on levels of ..
Produce the summary output and give the estimated equation for your chosen model and find a suitable regression model to predict y2 using x2 as an explanatory variable. Comment on the output used and justify your choice of model.
Determine the speed of the bullet. The spring has a stiffness k = 200 N.m and is originally unstretched.
Calculate the sample proportion successfully treated.- Determine a 95% confidence interval for the proportion of the population for whom the treatment would be successful.
in a raffle with 100 tickets 10 people buy 10 tickets each. ifthere are 3 winning tickets drawn at random find the
a researcher wants to determine if the average performance on a standardized business management test is significantly
A shipment of 100 pins contains some defectives. To decide whether to accept the shipment, the consumer follows a sampling plan where 15 items are cho- sen at random from the sample and tested. If the number of defectives in the sample is at ..
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