In a random sample of 84 coffee shops in Vancouver, it is found that a latte costs an average of $4.65 with a standard deviation of $0.30. Using alpha = 0.05, determine if the average price is significantly higher than $4.50.
1.Fill in the blanks to construct the correct null and alternate hypotheses.
H0: [ Select ] ["p", "p-hat", "μ", "y-bar"] [ Select ] ["<", "=", ">", "≠"] [ Select ] ["4.50", "4.65"]
HA: [ Select ] ["p", "p-hat", "μ", "y-bar"] [ Select ] ["<", "=", ">", "≠"] [ Select ] ["4.50", "4.65"]
2.What is the value of the test statistic?
3.If a p-value of 0.0054 were found, what would the decision be? Fill in the blanks to make the sentence below correct.
[ Select ] ["Fail to reject H0.", "Reject H0."] The average is [ Select ] ["significantly different from", "significantly less than", "significantly more than"] [ Select ] ["$4.50", "$4.65"] .
1) H0 : µ = 4.5
Ha : µ > 4.5
2) Test statistic
= 4.58
3) Since p-value is less than alpha, we should reject the null hypothesis.
Reject H0. The average is significantly more than $4.50
In a random sample of 84 coffee shops in Vancouver, it is found that a latte...
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