Question

5 molecules have speeds 11, 17, 42, 13, 94 m/s. Find the difference between the root mean square value and the mean (i.e. Vrms - Vmean) in m/s

Answer #1

1) Let x have a normal distribution with m = 10 and s = 3.
Find the probability that an x value selected at random from this
distribution is between 9 and 11.
In symbols, find P (9 £ x £ 11).
2) Suppose you take a sample of 33 high-school students, and
measure their IQ. Assuming that IQ is normally distributed with m =
100 and s = 15, what is the probability that your sample’s IQ will
be...

Consider the weighted voting system [q:13, 11, 6, 5,
1].
Find the smallest value of q for which
(a)
all five players have veto power.
b)
P3
has veto power but
P4
does not.

Consider the data.
xi
1
2
3
4
5
yi
2
8
6
11
13
(a)
Compute the mean square error using
equation s2 = MSE =
SSE
n −
2
. (Round your answer to two decimal places.)
(b)
Compute the standard error of the estimate using equation
s =
MSE
=
SSE
n −
2
. (Round your answer to three decimal places.)
(c)
Compute the estimated standard deviation of
b1
using equation
sb1 =
s
Σ(xi −
x)2...

11-14. The following data are pull-ups for college male students
at pre and post. Find out if there is any difference between pre-
and post-test. Pre-test 10, 11, 13, 14, 15, 16, 17 Post-test 11,
14, 16, 10, 22, 18, 19
13. Is the t value statistically significant at the p value of 0.01
(99% cumulative probability)?
14. If yes/no, what is the p-value found on the output?
Question 15-17. A volleyball coach noted that players who practices
jumping during...

Home work#4 cont.
Sum#5
The following data give the speeds of 13 cars (in mph) measured by
radar, traveling on i-84
73, 75,69,68,78,70,74
76,72,79,68,77,72
Calculate the value of the 35th percentile.
Enter the exact answer in mph.
Sum#6
The following data give the annual salaries (in thousand dollars)
of 20 randomly selected health care workers.
50,71,57,39,45,64,38,51,33,62
75,40,69,44,77,61,58,54,64,59
A. Calculate the values of the three quartiles and the
interquartile range
Q1
Q2
Q3
IQR
B. Find the approximate value of the...

Chapter 11
Financial Planning Exercise 13
Interpreting stock report information
Using the S&P report in Exhibit 11.6, find
the following information for Apple. If there is no appropriate
data in the report, leave the entry field blank.
What was the amount of revenues (i.e., sales) generated by the
company in 2014?
$ million
What were the latest annual dividends per share and dividend
yield? Round to two decimal places.
$ a share
%
What were the earnings (per share)...

Trials Results
Column1
Column2
Column3
Column4
Column5
Column6
1.F
11. S
21. S
31. F
41. S
51. F
61. S
2.F
12. F
22. F
32. S
42. F
52. F
62. S
3.S
13. F
23. F
33. S
43. F
53.F
63. S
4.F
14. F
24. S
34. S
44. F
54. F
64. F
5.S
15. F
25. F
35. F
45. F
55. F
65. F
6.S
16. S
26. F
36. F
46....

MALE :Student # Gender Height Shoe Age Hand
1 M 67 10 19 R
2 M 74 12 17 R
3 M 72 11.5 19 R
4 M 69 10 35 R
5 M 66 9 18 R
6 M 71 10.5 17 R
7 M 72 10.5 17 R
8 M 66 10 20 R
9 M 67 10 18 R
10 M 71 10.5 24 R
11 M 66 10 21 R
12 M 71 10.5 18 R...

Consider the following data to determine whether there is a
significant difference between the values of Group 1 and Group 2.
Let the significance level be 5%.
Group 1: 15, 17, 26, 11, 18, 21, 13, 29
Group 2: 23, 14, 24, 13, 22, 23, 18, 21
Using the Mann Whitney Table of p-values, what is the p-value
for this test? Round your U test statistic up to the next value to
locate on the table. (round answer to 4...

A random sample of 12 college students were surveyed on their
social activities. Students were asked to state how many times
during the previous year they had gone to the movies or sporting
events.
Student
1
2
3
4
5
6
7
8
9
10
11
12
Movies
12
2
13
17
14
9
24
6
26
22
10
16
Sports
7
4
13
4
9
15
18
4
11
9
5
2
Difference (movies – sports)
Once you have...

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