(Use SPSS) In your Geology class, the professor provides you with a sack containing ten marbles made of different materials – the label on the sack states that there are 4 onyx marbles, 2 quartz marbles, 3 granite marbles, and 1 alabaster marble. The professor instructs you to draw out a marble (without looking in the sack), record its type, and return the marble to the bag. You repeat this process until you’ve recorded the results of 100 draws (shown below). Using a 1% significance level, test to determine if your sampling results indicate that the label on the sack is incorrect. Be sure to check any assumptions. TYPE OF MARBLE Onyx Quartz Granite Alabaster FREQUENCY 42 24 28 6
(Use SPSS) In your Geology class, the professor provides you with a sack containing ten marbles made of different materials – the label on the sack states that there are 4 onyx marbles, 2 quartz marbles, 3 granite marbles, and 1 alabaster marble. The professor instructs you to draw out a marble (without looking in the sack), record its type, and return the marble to the bag. You repeat this process until you’ve recorded the results of 100 draws (shown below). Using a 1% significance level, test to determine if your sampling results indicate that the label on the sack is incorrect. Be sure to check any assumptions.
|
TYPE OF MARBLE |
Onyx |
Quartz |
Granite |
Alabaster |
|
FREQUENCY |
42 |
24 |
28 |
6 |
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