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. As an aid to the establishment of personnel requirements, the director of a hospital wishes to estimate the mean number of people who are admitted to the emergency room during a 24-hour period. The director randomly selects 64 different 24-hour periods and determines the number of admissions for each. For this sample = 19.8 and s2 = 25. Using the sample standard deviation as an estimate for the population standard deviation, what size sample should the director choose if she wishes to estimate the mean number of admissions per 24-hour period to within 1 admission with 99 percent reliability,?
2. A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial aid. Utilize a 90 percent confidence interval to estimate the true proportion of students who receive financial aid.
3. An economist is interested in studying the incomes of consumers in a particular region. The population standard deviation is called to be $1,000. A random sample of 50 individuals resulted in an average income of $15,000. What total sample size would the economist need to use for a 95 percent confidence interval if width of the interval should not be more than $100?
a) n = 1537
b) n = 385
c) n = 40
d) n = 20
Run an ANOVA using only groups 1 to 6 (You can hide group 7 from the analysis by data followed by select cases and then you filter out group 7 by if GROUP~= ). Also run the posthoc tests LSD and Bonferroni.
Compute the effect size with gender as the grouping variable and ADDSC as the dependent variable.
In order to test the assumption of a Poisson distribution, a random sample of 150 ten-minute intervals was taken.
Compute the 95% confidence interval around the mean of each of the three groups and plot the confidence interval in the space provided above.
If a single card is drawn from an ordinary deck of cards, what is the probability of drawing either a heart or a 6? (Answer in a fraction).
To determine if this is evidence that students perform worse under uncomfortable conditions, The P-value of a test
We assume that the population is approximately normally distributed. Find the confidence interval: for a confidence level of 95%:
With this important detail, are there any significant differences with LSD?
What is the probability the Time/CNN poll will provide a sample proportion within plus-or-minus 0.02 of the population proportion?
At 95% confidence using the p- value approach, test the hypotheses. Let α = 0.1.
Write up your results by using scientifically recognized form.
If is the proportion of the next 100 shoppers that buy a packet of the crackers after tasting a free sample, then the probability that fewer than 30% buy a packet after tasting a free sample is approximately.
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