Movie MPAA Rating Gross ($) in Millions
1 PG 15
2 PG 54
3 PG 147
4 PG 73
5 PG 56
6 PG 94
7 PG-13 142
8 PG-13 144
9 PG-13 89
10 PG-13 30
11 PG-13 118
12 PG-13 149
13 R 61
14 R 79
15 R 23
16 R 81
17 R 75
18 R 73
19 R 86
20 R 44
21 R 99
22 R 20
23 R 69
24 R 91

Refer to the accompanying data table. Use the amounts of money grossed by movies with ratings of PG or PG-13 as sample 1, and use the amounts of money grossed by movies with R ratings as sample 2. Use a 0.01 significance level to test the claim that movies with ratings of PG or PG-13 have a higher median gross amount than movies with R ratings.

Part 1

What are the hypotheses for this test?

A.

H0:

The two samples come from populations with equal medians.

H1:

The median gross amount of PG/PG-13 rated movies is greater than the median gross amount of R rated movies.

B.

H0:

The median gross amount of PG/PG-13 rated movies is less than or equal to the median gross amount of R rated movies.

H1:

The median gross amount of PG/PG-13 rated movies is greater than the median gross amount of R rated movies.

C.

H0:

The median gross amount of PG/PG-13 rated movies is greater than the median gross amount of R rated movies.

H1:

The two samples come from populations with equal medians.

test stat=

critical value=

conclusion=