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Questions
1. A genetic experiment with peapods resulted in one sample of offspring that consisted of 443 green peapods and 170 yellow peapods. Construct a 95% confidence interval to estimate the true percentage of yellow peapods.
2. A random sample of the birth weights of 186 babies has a mean of 3103 grams and a standard deviation of 700 grams. Construct a 98% confidence interval estimate of the mean birth weight for all such babies.
3. Salaries of 31 college professors who took a geology course in college have a mean of $58,000 and a standard deviation of $16,954. Construct a 90% confidence interval estimate of the population standard deviation of all such professors.
i have data points of the form (x,y) of a cluster... I want to find variance nad standard deviation of this so dat i can decide which is a good cluster... so let me know how to do
The heights of a large population of adult females who play basketball are normally distributed with a mean of 175cm and a standard deviation of 7.5cm. (a) what proportion of this
1. This question has multiple parts. For a distribution of scores with = 82 and standard deviation = 2.5, find the following: (Don't forget to sketch the normal curve to help
what is evaluation?
What are the major advantages of the Single Entry System? Ans. A Single Entry system is considered to be the most simplest method to record the financial transaction, only cash bo
The elevator in the Math and Computer Building can stop at one of six ?oors. Four riders get on the elevator at the ?rst ?oor and the elevator heads up. Each rider picks a ?oor at
You are working for the management of ESK Jewellery as a marketing consultant. The main business of ESK Jewellery is the retailing of diamond jewellery. They opened their first sho
List all possible simple random samples of size n = 2 that can be selected from the population {0, 1, 2, 3, 4}. Calculate 2 s for the population and Var y( ) for the sample.
A certain manufactured item is visually inspected by two different inspectors. When a defective item comes through the line, the probability that it gets by the first inspector is
A small specialized workshop is used to perform periodic check-up on some high-tech devices. The check up is made in three stages whose durations are independent random variables w
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