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Testing of UBAC(2) Class of Life Distributions based on TTT - Transform

International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Year of Publication: 2020
S.E. Abu-Youssef, A.A. El-Toony

S E Abu-Youssef and A A El-Toony. Testing of UBAC(2) Class of Life Distributions based on TTT - Transform. International Journal of Computer Applications 175(29):9-12, November 2020. BibTeX

	author = {S.E. Abu-Youssef and A.A. El-Toony},
	title = {Testing of UBAC(2) Class of Life Distributions based on TTT - Transform},
	journal = {International Journal of Computer Applications},
	issue_date = {November 2020},
	volume = {175},
	number = {29},
	month = {Nov},
	year = {2020},
	issn = {0975-8887},
	pages = {9-12},
	numpages = {4},
	url = {},
	doi = {10.5120/ijca2020920820},
	publisher = {Foundation of Computer Science (FCS), NY, USA},
	address = {New York, USA}


In this paper, a new test statistic for testing exponentiality against used better than aged in increasing concave ordering UBAC(2) is constructed based on total time on test (TTT)-Transform. Critical values are tabulated for sample size n = 10(5)100. The power of the test is estimated for some commonly used distributions in reliability. Finally, medical applications for real data are proposed to illustrate the theoretical results.


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UBAC(2) classes of life distributions; Survival function; Exponentiality; Total time on test (TTT)-transform; Monte Carlo method.