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!
Age at first marriage, Part I: The National Survey of Family Growth conducted by the Centers for Disease Control gathers information on family life, marriage and divorce, pregnancy, infertility, use of contraception, and men's and women's health. One of the variables collected on this survey is the age at first marriage. The histogram below shows the distribution of ages at first marriage of 5,534 randomly sampled women between 2006 and 2010. The average age at first marriage among these women is 23.44 with a standard deviation of 4.72 (NSFG, 2010). Assume that 4.72 is the population standard deviation.
(please round ages to two decimal places)
a) Estimate the average age at first marriage of women using a 95% confidence interval.
The difference between a random variable and a probability distribution is: A. A random variable does not include the probability of an event. B. A random variable can only assume whole numbers
According to Advertising Age, average base salary for women working as copywriters in advertising firms is higher than average base salary for men. The average base salary for women is $67,000 and the average base salary for men is $65,500 (Workin..
At 0.05 significance level, is there a difference in the mean number of defects per shift? Assume that the populations are approximately normally distributed and the variances are equal.
Calculate the confidence intervals about a regression line. My data is log transformed and has high R-square value for what is called "power" equation in Excel. My CI's are narrow at the top of the graph and very wide near the bottom.
Provide an appropriate statistical description and summary of this data set; comment on any distinctive characteristics and postulate potential explanations for your observation.
They continue to do this until one of them runs out of money. If it is assumed that the successive ?ips of the coin are independent and each ?ip results in a head ith probability p, what is the probability that A winds up with all the money if A s..
A polulation has standard deviation of 50. A random sample of 100 items from this population is selected. The sample mean is determined to be 600.At 95% confidence, the margin of error is?
there are two major types of regression analysis-simple and multiple regression analysis. both types consist of
The next 6 are assigned to treatment B. The last 6 are assigned to treatment C. Do you see any problem with this strategy of assigning treatments to experimental units?
a manufacturer produces two types of computer monitors monochrome and color. past sales experience shows that at least
question 1harryr.m.pittsthedirectoroflegalofcouncilofvancouverwillhavetomakeanumberoftoughdecisionsin the upcoming
five workers are available to perform four jobs. the time it takes each worker to perform each job is given in
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