Articles of K7
Back to Journal HomeCOMPARING MULTI-RIDGE AND INVERSE-RIDGE REGRESSIONS FOR DATA WITH AND WITHOUT MULTICOLLINEARITY USING VARIOUS SHRINKAGE FACTORS
By: Nnena Ngozi Okoro, Samuel Chukwudi Nwachukwu
Published: February 26, 2025
The study presented Mult-, and Inverse-ridge regressions for data with or without multicollinearity for certain shrinkage factors. The study considered data of GDP of Nigeria as response, while exchange, unemployment, inflation and foreign direct investment were used as the predictors. The data were tested for outlier using Grubb’s test and...
MODELING RANDOM ASSET RETURN BEHAVIOR USING AN OPTIMAL MULTI-PERIOD SPECTRUM
By: Wale Babajide Chukwuma Aharan
Published: February 26, 2025
Options have become extremely popular and the reasons behind that can be summarized in two points; they are attractive tools both for speculation and hedging. If their price can be determined: therefore their trading can be done with a certain confidence.The vendor of the option have two mains questions. How...
ASSESSMENT OF HEAVY METAL CONTAMINATION IN ADANSONIA DIGITATA LEAVES CONSUMED IN ONDA, NASARAWA STATE, NIGERIA
By: Amina Olufunke Oloruntoba, Chinedu Emmanuel Adebayo, Ibrahim Musa Dangiwa
Published: February 26, 2025
This work presents an assessment on the concentration of heavy metals in Adansonia digitata leaves consumed in Onda village of Nasarawa Local Government Area, in North central Nigeria. The concentration levels were measured using Atomic Absorption Spectrometer. The results obtained showed that the level of concentration of arsenic, chromium, mercury...