Suppose that BC financial aid alots a textbook stipend by claiming that the average textbook at BC bookstorecosts $$ 82.37. You want to test this claim.
Suppose that BC financial aid alots a textbook stipend by claiming that the average textbook at BC bookstorecosts $$ 82.37. You want to test this claim.
The null and alternative hypothesis in symbols would be:
- H0:p≤82.37H0:p≤82.37
H1:p>82.37H1:p>82.37 - H0:p≥82.37H0:p≥82.37
H1:p<82.37H1:p<82.37 - H0:μ≤82.37H0:μ≤82.37
H1:μ>82.37H1:μ>82.37 - H0:μ≥82.37H0:μ≥82.37
H1:μ<82.37H1:μ<82.37 - H0:μ=82.37H0:μ=82.37
H1:μ≠82.37H1:μ≠82.37 - H0:p=82.37H0:p=82.37
H1:p≠82.37H1:p≠82.37
The null hypothesis in words would be:
a) The average price of all textbooks from the store is $$ 82.37
b) The proportion of all textbooks from the store that are less than 82.37 is equal to 50%
c) The average of price of all textbooks from the store is greater than $ 82.37.
d) The average price of textbooks in a sample is $$ 82.37
e) The average of price of all textbooks from the store is less than $$ 82.37.
Based on a sample of 80 textbooks at the store, you find an average of 92.17 and a standard deviation of 24.
The point estimate is: (to 3 decimals)
The 90 % confidence interval (use z*) is: to (to 3 decimals)
Based on this we:
a) Reject the null hypothesis
b) Fail to reject the null hypothesis
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