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 mean annual salary of public classroom teachers is $49,000. Assume the standard deviation is $9,200. Do the following for the variable "annual salary"of classroom teachers.
a) Determine the sampling distribution of the sample mean for samples of size 64.
b) Repeat part "a" for samples of size 256
c) What is the probability that the sampling error made in estimating the population mean salary of all classroom teachers by the mean salary of a sample of 64 classroom teachers will be at most $1,000?
d) Repeat for samples of size 256
according to a recent survey the average urban person consumes 1.5 kg of food per day. is this figure accurate for
A study was designed to compare variability of male and female diastolic blood pressure. The null hypothesis was that the population standard deviation were equal versus the alternative that they were not equal.
From time to time, one branch office of a company must make shipments to a certain branch office in another state. There are three package delivery services between the two cities where the branch offices are located.
A study suggested that personality type is related to heart disease. Specifically, type A people,who are competitive, driven, pressured, and impatient, are more prone to heart disease.
Explain briefly and in nontechnical language what "a significant difference (P
What is an independent sample? What is a related sample? When should researchers use different hypothesis tests for independent and related samples?
In checking the quality of the work, she notices that some slight blemishes occasionally are apparent. A sample of 20 pieces of work resulted in the following number of blemishes on each piece:
Using the .05 level of significance, what should we conclude about the theory that 24 hours is the natural cycle? That is, does the average cycle length under these conditions differ significantly from 24 hours?
the systolic blood pressure of 18-year-old women is normally distributed with a mean of 120 mmhg and a standard
What type of educational background do CEOs have? In one survey, 344 CEOs of medium and large companies were asked whether they had an MBA degree. There were 97 MBAs
q1. in a recent study of 154 households 54 had air conditioning. find the 95 confidence interval of the true
Same chance of being selected as does any other group. What is the probability that at least one of the shifts will be unrepresented in that sample of workers?
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