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!
In the National AIDS Behavioral Surveys sample of 2673 adult heterosexuals, 0.2% (that's 0.002 as a proportion) had both received a blood transfusion and had a sexual partner from a group at high risk of AIDS. Explain why we can't use the large-sample confidence interval to estimate the proportion, p, in the population who share these two risk factors.
a. Large-sample confidence intervals should never be used when the sample proportion is smaller than 0.05.
b. There should be no problem using the large-sample confidence interval since the sample size was so large.
c. There should be no problem since the sample was random.
d. We can't assume that the sampling distribution of p^ is approximately Normal because n(p^) < 10.
suppose a study of 196 randomly sampled privately insured adults with incomes over 200 of the current poverty level is
In a recent survey, 10 percent of the participants rated Pepsi as being "concerned with my health." PepsiCo's response included a new "Smart Spot" symbol on its products that meet certain nutrition criteria
The cell phone industry is growing at a rapid pace. Current estimates suggest that 60% of people have cell phones. Suppose 25 people were randomly and independently sampled.
Determine if you would reject or fail to reject the null hypothesis in each of the following cases: (a) z=1.06 (b) z=2.06 (c) A z score beyond which 7% of the data fall in each tail.
Suppose that 56% of students at a university are in the College of Business. A sample of 803 students is taken. What is the probability that the sample proportion of students in the College of Business is greater than 53%?
The data in Table 8.12 are a subset of the data obtained by Shen et al. (1970) in an experiment concerned with the hypothesis that diabetes mellitus is not simply a function of insulin deficiency and that perhaps insulin insensitivity could play a..
The lifetime of a color television picture tube is normally distributed with a mean of 7.8 years and a standard deviation of 3 years. What is the probability that a picture tube will last more than ten years?
a. Construct an estimate of the regression equation using the same variables. b. Produce the appropriate residual plots to determine if the linear function is the appropriate regression function for this data set.
Our psychology department received a new statistics text for review. Prof. Smart in his review provided an interesting table of corrections.
Probabilities can be approximated by the normal probability distribution? Explain What is the probability of between 100 and 110 successes? What is the probability of 130 or more succeses?
what is the probability that there are exactly 6 girls among the first 10 and exactly 12 girls among the first 19
In considering doing a logistic regression using the Enter method, it was suggested that I may want to consider doing a sequential LSR or stepwise logistic regression instead.
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