Question 1 (1 point)

X follows a normal distribution with mu = 4.7 and sigma = 1.1. P(3.05 < X < 5.47) to four decimal places is:

Question 1 options:

1)

0.6912

2)

0.3088

3)

0.8088

4)

0.1912

Question 2 (1 point)

X follows a normal distribution with mu = 4.7 and sigma = 1.1. P(3.05 < X < 3.93) to four decimal places is:

Question 2 options:

1)

0.6752

2)

0.1752

3)

0.3248

4)

0.8248

Question 3 (1 point)

X follows a normal distribution with mu = 5.8 and sigma = 1.2. P(X > 7.36) to four decimal places is:

Question 3 options:

1)

0.0968

2)

0.5968

3)

0.9032

4)

0.4032

Question 4 (1 point)

X follows a Poisson distribution with mu = 11.3. P(X > 7) is approximately:

Question 4 options:

1)

0.3708

2)

0.6292

3)

0.1292

4)

0.8708

Question 5 (1 point)

Using 'sampling without replacement', a sample is to be randomly drawn from a population. The details are specified below:

Sample size = 41

Population size = 492

Population standard deviation = 24.40

The standard error of the mean to 4 d.p. is:

Question 5 options:

	0.5951
	4.9396
	3.8106
	3.6521

Question 6 (1 point)

A large population (N>10,000,000) is normally distributed with the following parameters:

Population mean = 60.30

Population standard deviation = 26.00

A random sample of size n=25 is taken.

The probability that the sample mean will be greater than 67.58 is:

Question 6 options:

	0.0808
	0.9192
	0.3897
	0.6103