Question

Lehman College City University of New York Department of Economics & Business BBA 303: Intermediate Business Statistics I 3rd test-1 (ch5) Name: CUNY Employee#: MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. (Each 2.5 points) Q1. Find the area of the indicated region under the standard normal curve. -1.30 0 A) 0.0823 B) 0.0968 C) 0.4032 D) 0.9032 Q2. Find the area under the standard normal curve to the left of z = 1.5. A) 0.0668 B) 0.5199 C) 0.7612 D) 0.9332 Q3. Find the area under the standard normal curve between z = 1 and z = 2. A) 0.1359 B) 0.8413 C) 0.5398 D) 0.2139 Q4. Assume that the random variable X is normally distributed, with mean ? = 70 and standard deviation ? = 16. Compute the probability P(X < 90). A) 0.1056 B) 0.8849 C) 0.8944 D) 0.9015 Q5. Assume that the random variable X is normally distributed, with mean ? = 90 and standard deviation ? = 12. Compute the probability P(57 < X < 105). A) 0.7888 B) 0.8819 C) 0.8914 D) 0.8944 Q6. IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15. An individual's IQ score is found to be 90. Find the z-score corresponding to this value. A) -0.67 B) 0.67 C) 1.33 D) -1.33

          Lehman College
City University of New York
Department of Economics & Business
BBA 303: Intermediate Business Statistics I
3rd test-1 (ch5)

Name:
CUNY Employee#:

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the
question. (Each 2.5 points)
Q1. Find the area of the indicated region under the standard normal curve.

-1.30 0

A) 0.0823
B) 0.0968
C) 0.4032
D) 0.9032

Q2. Find the area under the standard normal curve to the left of z = 1.5.
A) 0.0668
B) 0.5199
C) 0.7612
D) 0.9332

Q3. Find the area under the standard normal curve between z = 1 and z = 2.
A) 0.1359
B) 0.8413
C) 0.5398
D) 0.2139

Q4. Assume that the random variable X is normally distributed, with mean ? = 70 and standard deviation ? = 16. Compute the probability P(X < 90).
A) 0.1056
B) 0.8849
C) 0.8944
D) 0.9015

Q5. Assume that the random variable X is normally distributed, with mean ? = 90 and standard deviation ? = 12. Compute the probability P(57 < X < 105).
A) 0.7888
B) 0.8819
C) 0.8914
D) 0.8944

Q6. IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15. An individual's IQ score is found to be 90. Find the z-score corresponding to this value.
A) -0.67
B) 0.67
C) 1.33
D) -1.33

Lehman College
City University of New York
Department of Economics Business
BBA 303: Intermediate Business Statistics I
3rd test-1 (ch5)

Name:
CUNY Employee#:

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the
question. (Each 2.5 points)
Q1. Find the area of the indicated region under the standard normal curve.

-1.30 0

A) 0.0823
B) 0.0968
C) 0.4032
D) 0.9032

Q2. Find the area under the standard normal curve to the left of z = 1.5.
A) 0.0668
B) 0.5199
C) 0.7612
D) 0.9332

Q3. Find the area under the standard normal curve between z = 1 and z = 2.
A) 0.1359
B) 0.8413
C) 0.5398
D) 0.2139

Q4. Assume that the random variable X is normally distributed, with mean ? = 70 and standard deviation ? = 16. Compute the probability P(X < 90).
A) 0.1056
B) 0.8849
C) 0.8944
D) 0.9015

Q5. Assume that the random variable X is normally distributed, with mean ? = 90 and standard deviation ? = 12. Compute the probability P(57 < X < 105).
A) 0.7888
B) 0.8819
C) 0.8914
D) 0.8944

Q6. IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15. An individual's IQ score is found to be 90. Find the z-score corresponding to this value.
A) -0.67
B) 0.67
C) 1.33
D) -1.33

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