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!
D Dax limited installed a new safety equipment in order to reduce the number of person hours lost as a result of industrial accident. In a test to of the effectiveness of the equipment, a random sample of 50 departments was chosen. The number of person- hours lost in the month prior to and the month after the installation of the safety equipment was recorded. The percentage change was calculated and recorded. Assume that the population standard deviation is 5 and sample mean is -1.2. Can we infer at the 10% significance level that the new safety equipment is effective?
You are required to
a. Formulate hypotheses
b. Decide the suitable test statistics and justify your selection.
c. Calculate the value of the relevant test statistics and identify the P value
d. Based on the test statistics in part (III), decide the decision criteria.
e. Make the final conclusion based on the analysis.
Refer to the box plot below to answer the questions. If a data point that was originally 13 is changed to 14, how would the box plot be affected?
Consider different types of qualitative data collection and analysis methods and the ways in which they can support business decision making and strategies.
Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate risk?
If the going interest rate on these 10-year bonds is 2.0%, how much is the bond worth today?
Are insects more attracted to male plants? Some scientists wanted to determine whether there are gender-related differences in the level of herbivory.
In1990, 5.8% ofjob applicants whowere testedfor drugsfailed thetest.
what differentiates ratio data from data that are only
Find the percentile for the observed value in the following situations: GRE score of 450 (mean = 497, s.d. = 115).
What is the probability that she will get six questions? correct? What is the probability that she will get at least five questions? correct?
If 18 defective glass bricks include 10 that have cracks but no discoloration, 5 that have discoloration but no cracks, and 3 that have cracks and discoloration.
State the decision rule and sketch it. (c) Find the test statistic. (d) Make a decision. (e) Use Excel to find the p-value and interpret it.
a survey of 175 gun owners was taken and 44.3 of them said they have a gun for protection for self andor family. is
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