Students of a large university spend an average of $5 a day on lunch. The standard deviation of the expenditure is $3. A simple random sample of 36 students is taken. a) What is the expected value, standard deviation, and shape of the sampling distribution of the sample mean

Answer and Step-by-step explanation:

According to the situation the solution is shown below:-

The expected value is

The standard deviation is

= $3

The sample distribution of the sample standard deviation is

After solving the above equation  we will get

= 0.5

Basically we applied the applied formula so that each part could be determined

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

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step-by-step explanation: