Purchase Solution

Calculate and Interpret Z Score

Not what you're looking for?

Ask Custom Question

Using the data set below, can you tell me if any variable for any observation is appropriate for the calculation of a z score. If it is please explain how to calculate and interpret a z score on that variable. If it is not please tell me why it isn't appropriate for this data set.

Title Year Rating Budget ($) Gross ($) Length Viewer Rating
in Millions in Millions in Minutes

Aliens 1986 R 18.5 81.843 137 8.2
Armageddon 1998 PG-13 140 194.125 144 6.7
As Good As It Gets 1997 PG-13 50 147.54 138 8.1
Braveheart 1995 R 72 75.6 177 8.3
Chasing Amy 1997 R 0.25 12.006 105 7.9
Contact 1997 PG 90 100.853 153 8.3
Dante's Peak 1997 PG-13 104 67.155 112 6.7
Deep Impact 1998 PG-13 75 140.424 120 6.4
Executive Decision 1996 R 55 68.75 129 7.3
Forrest Gump 1994 PG-13 55 329.691 142 7.7
Ghost 1990 PG-13 22 217.631 128 7.1
Gone with the Wind 1939 G 3.9 198.571 222 8
Good Will Hunting 1997 R 10 138.339 126 8.5
Grease 1978 PG 6 181.28 110 7.3
Halloween 1978 R 0.325 47 93 7.7
Hard Rain 1998 R 70 19.819 95 5.2
I Know What You Did Last Summer 1997 R 17 72.219 100 6.5
Independence Day 1996 PG-13 75 306.124 142 6.6
Indiana Jones and the Last Crusade 1989 PG-13 39 197.171 127 7.8
Jaws 1975 PG 12 260 124 7.8
Men in Black 1997 PG-13 90 250.147 98 7.4
Multiplicity 1996 PG-13 45 20.1 117 6.8
Pulp Fiction 1994 R 8 107.93 154 8.3
Raiders of the Lost Ark 1981 PG 20 242.374 115 8.3
Saving Private ryan 1998 R 70 178.091 170 9.1
Schindler's List 1993 R 25 96.067 197 8.6
Scream 1996 R 15 103.001 111 7.7
Speed 2:Cruise Control 1997 PG-13 110 48.068 121 4.3
Terminator 1984 R 6.4 36.9 108 7.7
The American President 1995 PG-13 62 65 114 7.6
The Fifth Element 1997 PG-13 90 63.54 126 7.8
The Game 1997 R 50 48.265 128 7.6
The Man in the Iron Mask 1998 PG-13 35 56.876 132 6.5
Titanic 1997 PG-13 200 600.743 195 8.4
True Lies 1994 R 100 146.261 144 7.2
Volcano 1997 PG-13 90 47.474 102 5.8

Purchase this Solution

Solution Summary

The expert calculates and interprets the z score.

Solution Preview

The assumptions that your data need to meet for the z-test are:

(1) the data were collected using a simple random sample
(2) the population is normally distributed or the sample size is greater than 30 or both
(3) you know the population standard deviation

Here's how they apply to your data:

(1) I don't know how you collected the sample.
(2) We saw ...

Purchase this Solution


Free BrainMass Quizzes
Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.