Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. Assume the distribution is normal. Use the area of the normal curve to answer the question. Round to the nearest whole percent.
The average size of the fish in a lake is 11.4 inches, with a standard deviation of 3.2 inches. Find the probability of catching a fish longer than 17 inches.
2. A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the approximate number of bulbs that can be expected to last more than 400 hours.
3. Suppose 500 coins are tossed. Using the normal curve approximation to the binomial distribution, find the probability of 265 heads or more.
4. Solve the problem using the normal curve approximation to the binomial distribution.
A multiple choice test consists of 60 questions. Each question has 4 possible answers of which one is correct. If all answers are random guesses, estimate the probability of getting at least 20% correct.
the monthly earnings of a group of business students are normally distributed with a standard deviation of 594. a
Assign probabilities to the sample points and then find the probability that the first envelope purchased contains less than $100.
An important subcomponent of a medical device produced by a manufacturing line is normally distributed with mean 70.2" and standard deviation is 1.26".
Workers at a large toxic clean up project are concerned that their white blood cell counts may have been reduced. Let x be a random variable that represents white blood cell count per cubic millimeter of whole blood in a healthy adult.
the capacity of an elevator is 10 people or 1630 pounds. the capacity will be exceeded if 10 people have weights with a
Describe a study you might design that could use the Chi Square statistic. What are the variables? What are the null and alternative hypotheses? Why would the Chi Square test be appropriate for this design?
when n 20 and p 0.1 i can approximate the distribution of the sample proportion with a normal distribution with mean 2
At the .01 significance level, can we conclude that there is more variation?
Test the manager's suspicion at the 5% level of significance. Find the P-value or an interval containing the P-value for the sample test statistic.
based on the u.s. bureau of justice data 16 of persons arrested are women. if 400 arrest cases are randomly selected
do students at various universities differ in how sociable they are? twenty-five students were randomly selected from
An automobile assembly line operation has a scheduled mean completion time,u , of 12.6 minutes. The standard deviation of completion times is 1.8 minutes.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd