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!
Food Processor wants to compare two preservatives for their effects on retarding spoilage. Suppose 16cuts of fresh meat are tread with preservatives A and 16 are treated with preservative B, and the number of hours until spoilage begins is recorded for each of the 32 cuts of meat. The result asa summarized as
Sample mean of Preservative A =108.7 hoursSample mean of Preservative B =98.7 hourSample Standerd Deviation A=10.5 hoursSample Standerd Deviation B=13.6 hour
a) State the null and alternative hypotheses to determine if the average number of hours until spoilage begins differs for the preservatives A and B?
b) Analyse sample variances in order to find which test would likely be most appropriate to employ to test the equality of the population means, pooled or unpooled?
c) Calculate the pooled variance and the value of the test statistic.
Compute the value of the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)
If he succeeds he will obtain 2000 US dollars. suppose that thief currently has 1500 US dollars in his pocket. Compute expected value of this undertaking.
Many retail stores offer their own credit cards. At the time of the credit application the customer is given a 10 percent discount on the purchase.
Determine the probability that employee will make 28 or more sales during 100-call shift? Allocate a Random Variable x.
Test a hypothesis to see if this proportion has changed since 1985. I have the standard error and a t-score of 1.660. I need the test effect, test statistic and p-values.
Serum ferritin is used in diagnosing iron deficiency. In a study conducted recently researchers discovered that in a sample of 28 elderly men the sample standard deviation of serum ferritin was 52.6 mg/L. For 26 younger men the sample standard dev..
Is it reasonable to conclude that this set of n = 16 people is not a representative random sample of registered voters?
Does the weight of a vehicle affect the gas mileage? The following random sample was collected where x = weight of a vehicle in hundreds of pounds and y = miles per gallon.
Using an alpha level of 0.05, please use SPSS to perform a one-way ANOVA and then determine whether the data below provide evidence for Theory A, Theory B, or Theory C. In other words, is one theory stronger than the others?
Thirty homes responded, and the sample mean water use per day was 77 gallons with a standard deviation of 9.0 gallons per day.
The consequences of the central limit theorem is that if we end up averaging the measurements of a particular quantity, the distribution of an average tends on going toward a normal one?
Suppose n progeny are to be examined, and let P^ be the sample proportion of purple-owered plants. It might happen, by chance, P^ that would be closer to 1/2 than to 9/16. Find the probability that this misleading event would occur if:
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