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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING:
It is known that 70% of the customers in a sporting goods store purchase a pair of running shoes.A random sample of 25 customers is selected.Assume that customers' purchases are made independently,and let X represent the number of customers who purchase running shoes.(Hint: Solve using Excel. )
-What is the probability that between 17 and 21 customers,inclusively,purchase running shoes?
P-value
The probability of observing data at least as extreme as the observed data, assuming the null hypothesis is true.
Test Statistic
A numerical value calculated from a sample data during hypothesis testing, used to determine whether to reject the null hypothesis.
Larger
Referring to a quantity, amount, volume, or dimension that is greater than others in magnitude or size.
Test Statistic
A numerical value obtained from a statistical test used to decide whether to reject the null hypothesis.
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