Title
Comparative Study of Balanced Incomplete Block Designs: For Block Total Response Technique,Used
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Randomized response technique has decades old history. Warner (1965) is the founder of this technique. Block total response technique is one of these methods that were initially proposed by Smith et al. (1974). Raghavarao and Federer (1979) used the theory of balanced incomplete block designs to determine the structure of the questionnaires in their block total response technique (symmetric designs). Smith and Street (2003) determined the best designs in terms of minimum variance; used to estimate the proportions of 3 to 6 sensitive questions using the block total response procedure given a maximum total number of 13 questions. In this study, some new designs are explored for 3 to 6 sensitive questions given a maximum total number of 13 questions while extending the work of Smith and Street (2003) to estimate the proportion of population for 3 to 10 sensitive questions given a maximum total number of 25 questions. The proposed design for six sensitive questions has smaller variance than variance obtained from the unmatched count technique of Dalton et al. (1994).
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Shipping & Returns
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We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.