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. When conducting a significance test to determine if there is a difference between two treatments, with a quantitative response variable, treatments are given to different experimental units, we summarize the data by:
computing the mean and standard deviation of each treatment group separately.
computing the difference in the responses for each experimental unit under both treatments, and then finding the mean and standard deviation of the differences.
computing the difference in the proportion of the sample that reacted better to treatment one and the proportion of the sample that reacted better to treatment two.
computing the proportion of the sample that reacted better to treatment one than treatment two.
2. A social scientist is interested in determining if there is a significant difference in the proportion of Republicans between two areas of town. He takes independent random samples of 200 families in each area of town and a significance test was conducted. The p-value was 0.416. What should be our conclusions?
We do not have statistical significant evidence to say that there is a significant difference in proportion of Republicans in the two areas of town.
The evidence is very strong - there is a difference in proportion of Republicans between the two areas of town.
The evidence is pretty strong - there is a difference in proportion of Republicans between the two areas of town.
Where y∗i = a1 · yi + a2, for i = 1, ..., n, and a1 and a2 are known positive constants?
Transactions to a computer database are either new items or changes to previous item. The addition of an item can be completed. if 30% of the transactionss are changes what is the probability that a transaction can be completed in less that 100 milli..
Among 10 people, 2 people have a pulse of 50, 3 have a pulse of 70, 4 have a pulse of 80, and 1 has a pulse of 90. If X = the pulse of 1 person picked at random from the 10, what are the mean and variance of X? (Make a probability distribution table..
Expansion Plan Demand Growth
Describe a situation where it would be appropriate to use forecasting.
Calculate degrees of freedom and the critical values, or cutoffs, assuming a two-tailed test with a p level of 0.05, for each of the following designs: hours spent studying per week was correlated with credit-hour load for 72 students Twenty-seven co..
Perform a factor analysis on the three variables shown in question 2 above. What do conclude about the factors? Perform another factor analysis that includes the new variable, change in external events. What do you conclude?
Stat-101, questions from SPSS or Stat-101, Consider the way the table is arranged. If the hypothesis is correct, should we find a positive sign on Somers' dyx or a negative Signon Somers' dyx? Explain how you know.
Calculate normalized genotype frequencies after selection and calculate allele frequencies after selection - what kind of selection is occurring and what will be the equilibrium allele frequencies?
A statistics professor plans class so carefully that the lengths of his classes are uniformly distributed between 45.0 and 55.0 minutes. find the probability that a given class period runs greater than 50.75 minutes? find the probability of se..
Scores by women on the SAT-I test are normally distributed with a mean of 998 and a standard deviation of 202. Scores by women on the ACT test are normally distributed with a mean of 20.9 and a standard deviation of 4.6. Assume that the two tests ..
A screening test for a newly discovered disease is being evaluated. In order to determine the effectiveness of the new test, it was administered to 900 workers; 150 of the individuals diagnosed with the disease tested positive.
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