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!
The director of a state agency believes that the average starting salary for clerical employees in the state is less than $30,000 per year. To test her hypothesis, she collected a simple random sample of 100 starting clerical salaries from across the state and found that the sample mean is $29,750.
1: State the appropriate null and alternative hypothesis.
2: Assuming the population standard deviation is known to be $2,500 and the significance level for the test is to be 0.05, what is the critical value (stated in dollars)?
3: Referring to your answer in part b, what conclusion should be reached with respect to the null hypothesis?
4: Referring to your answer in part c, which of the two statistical errors might have been made in tis case explain.
A recent survey of frozen convenience meals found a correlation of r=0.768 between calories and fat content in the sampled meals.
The researchers made 10 measurements of ATP, which had x = 0.84. What was the sample standard deviations for these measurements?
The average monthly gasoline purchase for a family with 2 cars is 90 gallons. This statistic has a normal distribution with a standard deviation of 10 gallons. A family is chosen at random.
What are the assumptions and requirements for an LP model to be formulated and used? Under what conditions will an LP problem: be unbounded? be infeasible? have more than one optimal solution?
What is the critical F value for a sample of 21 observations in the numerator and 15 in the denominator? Use a two-tailed test and the 0.02 significance level. (Round your answer to 2 decimal places.)
A random sample of 70 printers discovered that a20 of them were being used in small businesses. Find the 99% limit for the population porportion of printers that are used in small businesses.
Find the test statistic P-value, and critical value, and state the final conclusion.
Write a sample result section, discussing your data screening activity (this section should be in APA format).
Last year, there were 30,000 students at a university; their GPA had a mean of 2.9 and an SD of 0.6. This year, in a simple random sample of 100 students taken from this university, the GPAs have a mean of 2.95 and an SD of 0.55. Has the mean GPA ..
If the value of the standard normal random variable Z is positive, then the original score is where in relationship to the mean?
A company manufacturers batteries in batches of 18 and there is a 3% rate of defects. Find the standard deviation for the number of defects per batch.
How does multilinear regression analysis apply to your profession? Specify the dependent value and the set of predictors. Where would you get the data?
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