Each of three supermarket chains in the Denver area claims to have the lowest overall prices. As part of an investigativ

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Each of three supermarket chains in the Denver area claims to
have the lowest overall prices. As part of an investigative study
on supermarket advertising, a local television station conducted a
study by randomly selecting nine grocery items. Then, on the same
day, an intern was sent to each of the three stores to purchase the
nine items. From the receipts, the following data were
recorded.
a-1. State the null hypothesis and the
alternate hypothesis.
For Treatment (Stores): Null hypothesis
H0: μS ≠ μR ≠ μL
H0: μS = μR = μL
multiple choice 1
a
b
Alternate hypothesis
multiple choice 2
H1: There is no difference in the store
means.
H1: There is a difference in the store
means.
a-2. For blocks (Items):
H0: μ1 = μ2 =
... μ9
H0: μ1 ≠ μ2 ≠
... μ9
multiple choice 3
a
b
Alternate hypothesis
multiple choice 4
H1: There is no difference in the item
means.
H1: There is a difference in the item
means.
b. What are the test
statistics? (Round your answers to 4 decimal
places.)