6. The grade point average for 10 randomly selected college
students is: 2.9, 3.1, 3.4, 3.6,...
6. The grade point average for 10 randomly selected college
students is: 2.9, 3.1, 3.4, 3.6, 3.1, 4.0, 2.5, 3.7, 3.0, 2.5.(
Assume the sample is taken from a normal distribution)
a) Find the sample mean. (show all work)
b) Find the sample standard deviation.
c) Construct a 99% C. I. for the population mean
Randomly selected students were given five seconds to estimate
the value of a product of numbers...
Randomly selected students were given five seconds to estimate
the value of a product of numbers with the results shown below.
Estimates from students given
1×2×3×4×5×6×7×81×2×3×4×5×6×7×8:
45000, 1000, 500, 1500, 856, 1000, 1252, 200, 1110, 400045000,
1000, 500, 1500, 856, 1000, 1252, 200, 1110, 4000
Estimates from students given
8×7×6×5×4×3×2×18×7×6×5×4×3×2×1:
2000, 2050, 100000, 40320, 300, 10000, 550, 400, 377,
1000002000, 2050, 100000, 40320, 300, 10000, 550, 400, 377,
100000
Use a 0.050.05 significance level to test the claim that the...
15 students received the following scores on a quiz. 6, 7, 2,
10, 8, 6, 7,...
15 students received the following scores on a quiz. 6, 7, 2,
10, 8, 6, 7, 3, 9, 5, 5, 8, 9, 8, 4
1. What is the cumulative frequency for students who scored
6?
2. How many students scored between 7 and 10?
3. What is the cumulative percentage for students who scored
9?
4. A student who received a score of 7 would be at what
percentile? (approximately)