Question

Q. 2. A company manufactures refrigeration equipments as well as many replacement parts. In
the past, one of the replacement parts has been produced periodically in lots of varying sizes.
When a cost improvement program was undertaken, company officials wished to determine the
optimal lot size for producing this part. One key input for the model to ascertain the optimal lot
size was the relationship between lot size and labour hours required to produce the lot. To
determine this relationship, data on lot size and work hours for 25 most recent production runs
are utilized. Given that 225, X, = 1750. ?S, Y; = 7807, 12(X; - X)^2 = 19800,
225 (Y - Y)^2 = 307203, EPS (X - X)(Y - Y) = 70690.
Consider the fitting model Y = a + bx + € to the data, The least square estimate of b is
(a) 4.5801
(b) 3.5702
(C) 2.0257
(d) None of these​

Answer 1

Answer:

Indirect speech is a means of expressing the content of statements, questions or other utterances, without quoting them explicitly as is done in direct speech. For example, He said "I'm coming" is direct speech, whereas He said he was coming is indirect speech