Mathematics, 05.12.2020 14:00 nooooooooooooooo412
The cost of a daily newspaper varies from city to city. However, the variation among prices remains steady with a standard deviation of 20¢. A study was done to test the claim that the mean cost of a daily newspaper is $1.00. Twelve costs yield a mean cost of 95¢ with a standard deviation of 18¢. Do the data support the claim at the 1% level?
Complete the blanks within the hypothesis testing procedures as follows:
Statements of null and alternative hypotheses:
H0: μ ___ $1.00
Ha: μ ___ $1.00
(where blanks 1 and 2 require appropriate symbol, such as “equal”, “not equal”, “less than” or “more than”)
Sample z score = (3 decimal places)
Critical z score(s) = (2 decimal places with indication of direction(s))
p-value = (4 decimal places)
Decision: null hypothesis (enter either “Reject” or “Do not reject”)
Answers: 1
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