Significant difference in the average price

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A consumers' public interest research group sampled four different supermarket chains A, B, C, and D, to determine if there is a significant difference in the average price charged for a quart of milk (in cents). The following results were obtained

A

63

64

62

63

67

60

62

61

B

68

68

62

65

67

61

69

68

C

67

61

60

59

59

62

65

63

D

62

66

67

63

64

69

67

66

Does the data indicate that there is a significant difference in the average price charged by these supermarkets for a quart of milk at the 0.05 level of significance?

Reference no: EM132342729

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