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!
Do women talk more? Conventional wisdom suggests that women are more talkative than men. One study designed to examine this stereotype collected data on the speech of 42 women and 37 men in the United States
(a) The mean number of words spoken per day by the women was 14,297 with a standard deviation of 6441. Use the 68-95-99.7 rule to describe this distribution.
(b) Do you think that applying the rule in this situation is reasonable? Explain your answer.
(c) The men averaged 14,060 words per day with a standard deviation of 9056. Answer the questions in parts (a) and (b) for the men.
(d) Do you think that the data support the conventional wisdom? Explain your answer. Note that in Section 6.1 we will learn formal statistical methods to answer this type of question.
For Problem use a computer to simulate the experiment for many trials. Compare the estimate to the actual outcomes of the computer experiment.
Looking carefully at the stepwise regression model, you can see that the value of the slope coefficient for variable x2, family income, changes as a new variable is added to the regression model. Discuss why this change takes place.
Recent studies indicate that the typical 50-year-old woman spends $350 per year for personal-care products. The distribution of the amounts spent is positively skewed.
A population is normally distributed with the mean of 100 and a standard deviation of Would it be unusual for mean of sample of 3 to be 115 or more? Why or why not?
Store A has signed a revenue-sharing contract with a movie studio for DVDs. Each DVD costs the studio $2 to produce, and will be sold to Store A for $5. Store A in turn prices a DVD at $15 and forecasts demand to be normally distributed with mean 5,0..
Explain how you would use linear regression to prove a hypothesis like global warming. Explain how this analysis can be used to project the future. Support your response. Provide at least one academic source other than our course textbooks to sup..
Are conditions for creating a confidence interval satisfied? Explain.- Construct a 95% confidence interval.- Explain what your confidence interval says about chicken sold in the United States.
Find the proportion of employees who are managers and have MBA degrees.
Tree diagram for a probability experiment - Identify the sample space of the probability experiment and determine the number of outcomes in the event. Show a tree diagram if it is appropriate.
An ambiguous grammar can produce two distinct parses for some string in the grammar's language. Explain why an ambiguous grammar is never LL(k) for any k, even if the grammar is free of common prefixes and left-recursion.
Suppose the probability of the worst-case scenario increases Compute the expected value of perfect information
Suppose you want to find the approximate probability that a randomly selected family form Los ANGELES eans more than $75,000 a year? How would you find this probability? Explain
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