Business, 26.01.2021 04:30 lindamillscotton90

The Quality Control Department employs five technicians during the day shift. Listed below is the number of times each technician instructed the production foreman to shut down the manufacturing process last week. Technician Shutdowns
Taylor 2
Hurley 1
Gupta 3
Rousche 5
Huang 4
a. How many samples, without replacement, of size two are possible?
b. Compute the mean of the sample means and compare it to the population mean. (Round your answers to 1 decimal place.)
The mean of the sample means is
The population mean is
Both means are:
A. not equal
B. equal.

Answers: 3

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Answers

Answer from: vjacksongonzalez

Explanation:

From the information given:

The population size N = 5

The sample size n = 2

∴

without replacement; the number of possible samples;

^NC_n

= ^5C_2

$= \dfrac{5!}{2!(5-2)!}$

$= \dfrac{5!}{2!(3)!}$

= 10

Thus, 10 different samples of 2 technicians each are possible.

DIfferent samples

S/No possible samples Mean

1 2 1 3/2 = 1.5

2 2 3 5/2 = 2.5

3 2 5 7/2 = 3.5

4 2 4 6/2 = 3

5 1 3 4/2 = 2

6 1 5 6/2 = 3

7 1 4 5/2 = 2.5

8 3 5 8/2 = 4

9 3 4 7/2 = 3.5

10 5 4 9/2 = 4.5

Total 30

Sample distribution for the sample mean $= \dfrac {30} {10}$

= 3

Population mean = $\dfrac{2+1+3+5+4}{5}$

$=\dfrac{15 }{5}$

= 3

Thus, it is obvious that both means are equal

Answer from: Quest

answer; i believe the correct answer is radioactive decay);

Answer from: Quest

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

hope it

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The Quality Control Department employs five technicians during the day shift. Listed below is the nu...