1. -2b+9-(-5b)
1 answer:
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The chi-squared test statistic will be 3.11. The test statistic is contrasted with a predicted value based on the Chi-square distribution.
<h3>What is the chi-squared test statistic?</h3>Finding the squared difference between the actual and anticipated data values, then dividing that difference by the expected data values, constitutes the test statistic.
The formula for the chi-squared test statistic is;
Where,
is the observed value
is the expected value
The chi-square test statics is;
Hence, the chi-squared test statistic will be 3.11.
To learn more about the chi-squared test statistic refer;
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Answer:
24 stations
Step-by-step explanation:
we know that
six stations represent 25% of the stations offered
so
using a proportion
Find out how many stations represent a percentage of 100%