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The owner of Britten's Egg Farm wants to estimate the mean number of eggs laid per chicken. A sample of 20 chickens shows they laid an average of 19 eggs per month with a standard deviation of 2.84 eggs per month. (a-1) What is the value of the population mean? (a-2) What is the best estimate of this value? (c) For a 95 percent confidence interval, the value of t is . (Round your answer to 3 decimal places.) (d) The 95 percent confidence interval for the population mean is to (Round your answers to 3 decimal places.)
Normal adult Mean Temperature is 98.2 and standard deviant is 0.62 with normal distribution. If 16 people are randomly selected determine the probability that their mean body temp is below 98.5 degrees.
What is the predicted GPA if a person watches 12 hours of television per week?
suppose the cumulative distribution function of the random variable x is fx 0 when xlt-2 fx .25x .5 when -2 lt x lt
Using test data on 20 types of laundry detergent, an analyst fitted a regression to predict CostPerLoad (average cost per load in cents per load) using binary predictors.
A 90% confidence interval for the mean Math SAT score mu for the population of seniors is what? (Assume the population of Math SAT scores for seniors in the district is approximately normally distributed.
What does r 2 of .73 tell us? Is this a strong or weak correlation? How can you tell?
the data below are sales y in thousands of dollars per week for home improvement outlets in each of four cities. the
Under proposed plan, how long, on average, will patient stay in ER? On average, how long will Potential Admit stay in ER?
You're considering an investment in the common stock of Crisp Cookware. The stock is expected to pay a dividend of $2 a share at the end of the year (D1 = $2.00). the stock has a beta equal to 0.9.
Can the binomial distribution be used to model the number of rare events that occur over a given time period?
using a 5 significance level test the claim that there is a gender differenceamong 2200 randomly selected males 72 wear
mcneese and klein 1991 looked at the average particle size. specifications give the standard deviation of 2 microns. a
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