# Question

The z notation, z (a), combines two related concepts, the z-score and the area to the right, into a mathematical symbol. Identify the letter in each of the following as being a z-score or an area, and then with the aid of a diagram explain what both the given number and the letter represent on the standard curve.

a. z(A) = 0.10

b. z(0.10) = B

c. z(C) = - 0.05

d. -z(0.05) = D

a. z(A) = 0.10

b. z(0.10) = B

c. z(C) = - 0.05

d. -z(0.05) = D

## Answer to relevant Questions

Find the probability that a piece of data picked at random from a normal population will have a standard score (z) that lies to the left of the following z-values a. z = 2.10 b. z = 1.20 c. z = 3.26 d. z = 0.71 Find the normal approximation for the binomial probability P(x = 6), where n = 12 and p = 0.6. Compare this to the value of P(x = 6) obtained from Table 2. Considering the population of five equally likely integers in Example 7. 2: a. Verify m and s for the population in Example 7. 2. a. Change the “# Observations per sample” to “4.” Using batch and 500, take 1000 samples of size 4. A researcher wants to take a simple random sample of about 5% of the student body at each of two schools. The university has approximately 20,000 students, and the college has about 5000 students. Identify each of the ...Post your question

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