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!
Biology and Environmental Science A quahog is a chewy Atlantic hard-shell clam with a blue-gray shell. Quahogs have different names, depending on size; for example, the width of a littleneck clam is under 5 centimeters (across the shell). The historical mean width of a littleneck is 4.75 cm. Following a recent oil spill off the coast of Maine, a random sample of 46 littlenecks was obtained and the width of each was recorded. The summary statistics were x‾ = 4.66 cm and s = 0.25 cm.
a. Use a one-sided, left-tailed hypothesis test to show that there is evidence to suggest the mean width of littlenecks has decreased. Assume the population of littleneck widths is normal and use a = 0.01.
b. Explain why there is statistical evidence that the population mean has decreased even though the sample mean (4.66) is so close to the historical mean (4.75).
c. Find bounds on the p value associated with this hypothesis test.
The number of breakdowns is dependent on the shift, because the test value 11.649 is less than the critical value of 12.592.
Discuss the cost structure of motor carriers and how it is affected by the infrastructure. Should there be changes made in public policy with respect to the motor carriers' use of public highways?
Interpret the accompanying computer output for this study, including your conclusion for each null hypothesis associated with the experiment.
For each of the given, indicate whether the variable is ordinal or not. If the variable is not ordinal, indicate its variable type.
Determine the price and services contribution to a new business-class air service aimed to create a competitive advantage.
rosenberg land development rld is a developer of condominium properties in the southwest united states. rld has
1. Give an example of a number that cannot be a correlation coefficient (Pearson's r) and is a negative number. 2. Interpret the following statement. A researcher collected data on the correlation between grades in a course and the number of abs..
let the number of trials be n = 3, and let the probability of success be p = 0.0228. Use a calculator to compare:
Model this process as a Markov chain. Describe the states of the system and give the transition probability matrix. - Determine whether each state is periodic or aperiodic. If periodic, determine the period of each state.
From these statistics she calculates a 90% confidence interval of [20.9 grams, 25.1 grams]. What can the researcher do to decrease the width of the confidence interval?
Is there a relationship between the race of violent offenders and their victims? Data from the U.S. Department of Justice
when testing a claim about a population mean with ? known either or both of these conditions is satisfied the
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