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You are given the following information obtained from a random sample of 5 observations taken from a large population.
32 34 32 30 32
Construct a 95% confidence interval for the mean of the population, assuming the population has a normal distribution.
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 22 eggs per month with a standard deviation of 2.03 eggs per month.
question 1according to a recent survey the average urban person consumes 1.5 kg of food per day. is this figure also
Critically discuss some reasons that business outputs vary? For example why does production output vary? Explain the difference between common causes of variation and special causes of variation.
Construct a frequency distribution of the sample mean, and plot a histogram of this distribution. Use the central limit theorem to calculate and identify the sampling distribution of the sample mean.
Which of these measurement scales (nominal, ordinal, interval and ratio) can be handled through hypothesis testing? What are the five steps in hypothesis testing? Is the order important? Why or why not?
Suppose also that we can buy a bond at time 0 for $.90 that will be worth $1 at time 1. What should the price of this option be? Does the assumption of no arbitrage answer this question?
1. you are interested in testing the distance of two golf balls brand a and brand b. you take a random sample of 100
Suppose the distribution of amounts purchased follows normal distribution. For sample of 50 customers, reply the following questions. Determine the probability the sample mean is at least $25.00?
A manufacturer of batteries offers a two-year limited warranty. If the battery fails for any reason during the first two years, it is replaced. What percentage of the batteries is expected to fail within the warranty period?
Find out the area using Normal distribution. As, if Z is a standard normal variable find out the probability that Z lies.
Employ the frequency distribution, which describes the response of a survey of college students when asked, "How often do you wear a seat belt when riding in a car driven by someone else?"
a recent poll of 700 people who work indoors found that 278 smoke. if the researchers want to be 98 confident of their
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