A door delivery florist wishes to estimate the proportion of people in his city that will purchase his flowers. Suppose the true proportion is 0.05. If 408 are sampled, what is the probability that the sample proportion will differ from the population proportion by greater than 0.03?

 The probability is  

Step-by-step explanation:

From the question we are told that

   The population proportion is  

    The sample size is  n =  408

Generally the standard deviation of the sampling distribution is mathematically represented as

=>    

=>    

Generally the probability that the sample proportion will differ from the population proportion by greater than 0.03 is mathematically represented as

So    

=>  

From the z table  the area under the normal curve to the left corresponding to  2.778  and  -2.778  is

and

So

=>  

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: