Question

A.

A test was given to a group of students. The grades and gender
are summarized below:

A | B | C | Total | |

Male | 17 | 16 | 7 | 40 |

Female | 4 | 3 | 12 | 19 |

Total | 21 | 19 | 19 | 59 |

Let p represent the percentage of all female students who would
receive a grade of C on this test. Use a 85% confidence interval to
estimate p to three decimal places.

Enter your answer using decimals (not percents).

B. You are performing a left-tailed t - test with test statistic t=−0.23 and a sample of size 33, find the p-value to 4 decimal places

C. You are performing a two-tailed test.

If α=.005, find the positive critical value, to three decimal
places.

Answer #1

A test was given to a group of students. The grades and gender
are summarized below: A B C Total Male 9 11 15 35 Female 4 10 14 28
Total 13 21 29 63 Let p represent the percentage of all male
students who would receive a grade of B on this test. Use a 85%
confidence interval to estimate p to three decimal places. Enter
your answer using decimals (not percents).

Giving a test to a group of students, the grades and gender are
summarized below
A
B
C
Total
Male
19
9
7
35
Female
14
8
11
33
Total
33
17
18
68
Let p represent the population proportion of all female students
who received a grade of C on this test. Use a 98% confidence
interval to estimate p to four decimal places if possible.

Giving a test to a group of students, the grades and gender are
summarized below
A
B
C
Total
Male
4
9
17
30
Female
6
13
2
21
Total
10
22
19
51
Let p represent the population proportion of all female students
who received a grade of B on this test. Use a 90% confidence
interval to estimate p to four decimal places if possible.
< p <

Giving a test to a group of students, the grades and gender are
summarized below A B C Total Male (A)14 (B)17 (C)4 35 Female (A)19
(B)13 (C)10 42 Total (A)33 (B)30 (C)14 77 Let p represent the
population proportion of all female students who received a grade
of C on this test. Use a 98% confidence interval to estimate p to
four decimal places if possible.
____ < p< _____

Giving a test to a group of students, the grades and gender are
summarized below A B C Total Male 11 12 3 26 Female 19 15 5 39
Total 30 27 8 65 If one student is chosen at random, Find Giving a
test to a group of students, the grades and gender are summarized
below
A
B
C
Total
Male
11
12
3
26
Female
19
15
5
39
Total
30
27
8
65
If one student is...

10.) Giving a test to a group of students, the grades and gender
are summarized below
Grades and Gender
A
B
C
Total
Male
16
3
9
28
Female
12
17
7
36
Total
28
20
16
64
If one student is chosen at random, find the probability that
the student was female OR got an "B". Round your answer to 4
decimal places.
11.)
Giving a test to a group of students, the grades and gender are
summarized below....

A test was given to a group of students. The grades and gender
are summarized below
A
B
C
Male
8
11
6
Female
5
17
18
A) If one student is chosen at random from those who took the
test, find the probability that the student got a 'A' given they
are female.
Round your answer to three decimal places.
B) If one student is chosen at random from those who took the
test, find the probability that the...

Giving a test to a group of students, the grades and gender are
summarized below
A
B
C
Total
Male
5
4
11
20
Female
10
9
19
38
Total
15
13
30
58
If one student was chosen at random,
find the probability that the student got an A.
(Enter your answer in decimal format rounded to 2
decimal places if necessary; do not convert to percentage)

Giving a test to a group of students, the grades and gender are
summarized below A B C Total Male 5 4 11 20 Female 10 9 19 38 Total
15 13 30 58 If one student was chosen at random, find the
probability that the student got an A. (Enter your answer in
decimal format rounded to 2 decimal places if necessary; do not
convert to percentage)

A test was given to a group of students. The grades and gender
are summarized below
A
B
C
Total
Male
18
7
20
45
Female
5
14
12
31
Total
23
21
32
76
If one student is chosen at random from those who took the
test,
Find the probability that the student got a 'A' GIVEN they are
female.

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