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# \$9.006 MCQS: If Larry gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8 where does he ...

Found in Mathematics: Statistics
Chapter 1, # 0
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1) If Larry gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8, where does he stand in relation to his classmates? (Points: 5)
He is in the top 10%.
He is in the top 20%.
He is in the bottom 20%.
He is in the bottom 10%.

2. Let's assume you have taken 100 samples of size 64 each from a normally distributed population. Calculate the standard deviation of the sample means if the population's variance is 49. (Points: 5)
0.875
0.125
0.766
0.587

3. Find P(11 < x < 16) when mu = 15 and sigma = 3. (Points: 5)
0.6293
0.3707
0.0918
0.5375

4. Interpret a 90% confidence interval of (4.355, 4.445) for a population mean.

5. ) In the standard normal distribution, the variance is always (Points: 5)
0
1
2
none of these

6. The area under a normal curve with mu = 15 and sigma = 2 is (Points: 5)
0
1
2
none of these

Tutorial

\$9.00
6 MCQS: If Larry gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8 where does he ...
• This tutorial was purchased 2 times and rated No Rating by students like you.
• Posted on Feb 14, 2010 at 11:15:47PM
A:
Preview: ... m)/s = (70 - 65)/5.8 = 0.8621 P(z > 0.8621) = 0.1943 o ...

The full tutorial is about 91 words long .