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!
In a pulse rate research, a simple random sample of 120 men results in a mean of 80 beats per minute, and a standard deviation of 11 beats per minute. Based on the sample results, the researcher concludes that the pulse rates of men have a standard deviation greater than 10 beats per minutes. Use a 0.10 significance level to test the researcher's claim.
(a) Identify the null hypothesis and alternative hypothesis.
(b) Determine the test statistic. Show all work; writing the correct test statistic, without supporting work, will receive no credit.
(c) Determine the P-value for this test. Show all work; writing the correct P-value, without supporting work, will receive no credit. (d) Is there sufficient evidence to support the researcher's claim? Explain.
A certain brand of automobile tire has a mean span of 3500 miles and a standard deviation of 2000 miles. (assume the life spans of the tires have a bell-shaped distribution)
If the data produce a t statistic of t = 2.50, then which of the following is the correct decision for a two-tailed hypothesis test?
Value of s^2 (s(squared)), is less than or equal to 0.01 even though s = 0.0075. What is to be done with a shipment of this glass for which the sample variance of the indices of refraction equaled 0.000182?
A researcher is studying IQ levels. From past experience she knows the population mean IQ for adults is 110 and the standard deviation is 15.
the mean number of errors per page made by a member of the word processing pool for a large company is thought to be
Perform a hypothesis test by using.04 level of significance to find out if there is a difference between the population means.
From the MM207 Student Data Set identify one variable that is discrete and one variable that is continuous. Explain your reasoning. How do you know?
Parts, materials and product inventories need to be kept up to date irrespective of their dynamic nature. As a fresh graduate from college document clearly the modern inventory management techniques.
A client has an out-of-control system and a recommendation has been made to hire an internal accountant.
1.a statistics instructor wants to know which route will get her to school the fastest. each day from october 2 to
Assume x is normally distributed with mean u=15 and standard deviation 0=3. Use the approximate areas beneath the normal curve, as discussed in this section, to answer the following questions.
multiple choices based on regression analysis.1. a variable that cannot be measured in terms of how much or how many
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