Quantitative Methods - Final exam preperation. A manufacturing firm has three machines A, B and C. The probability that machine A will break down is 0.1 and the probability that machine B will break...

1 5 1 6 1 5 1 11 12 4000 9 3600 1 13 150 60 20 45 68 57 1 16 1995 106.1 1996 111.1 1997 117.2 1998 121.3 1999 125.1 2000 128 2001 132.6 1 14 0.5 0.3 0.2 100000 60000 -20000 25000 35000 45000 6 8 Quantitative Methods - Final exam preperation. A manufacturing firm has three machines A, B and C. The probability that machine A will break down is 0.1 and the probability that machine B will break down is 0.2. If the probability that at least one machine will break down is 0.994, what is the probability that machine C will not break down? Show your workings. maximum probability that the dealer will not run out of stock in that week? 200 litres and a variance of 2000 litres2. What is the most amount of water likely to be used daily by the lowest consuming 10% of households? The monthly incomes of two groups of salesman are being investigated to determine if there is a difference in their average incomes. Random samples are taken from the groups and it can be assumed that the income in both groups are approximately normally distributed. The sample results are tabulated below. Investigate at thje 5% level of significance, whether there is a difference in the average incomes of the two groups. Group 1 Group 2 Sample size $200 $300 Standard deviation ($) Mean monthly income ($) Television ownership among a random sample of households is classical according to two characteristics: The table below gives the survey details. Ownership of a colour television and household tupe. Colour TV No colour TV Owner occupier Council tennant Private tennant Establish at the 1% level of significance, whether there is a relationship between colour TV ownership and the type of household. The following table gives the consumer price index for medical health care in a certain country during the period 1995 to 2001 Year Health care CPI Determine Pearson's correlation coefficient and comment on the value obtained. Obtain a...