The operations manager at a brewery that runs 24 hours per day wants to investigate the amount of production time lost each day (24-hour period) due to equipment failure. Historically, the population mean amount of lost time has been assumed to be 3.4 hours per day. The manager feels that due to aging equipment, the population mean is now greater than 3.4 hours per day. The manager decides to test his claim. Over the next 2 months, the sample of 30 days results in an average amount of lost time 3.92 hours per day with a sample standard deviation 1.4 hours. What would be the conclusions that we can draw for the test described above based on these sample results?

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answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.

step-by-step explanation:

what does 'mandy have ben 780 bottle caps. ' mean?

c.

step-by-step explanation: