The table below shows the durations of eruptions x in

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Question 1: Twenty-one homes with living areas under 2000 sq ft have selling prices with a standard deviation of $32,159.73. Nineteen homes with living areas greater than 2000 sq ft have selling prices with a standard deviation of $66,628.50. At "alpha" = 0.05, test the claim that homes larger than 2000 sq ft have selling prices that vary more than that for the smaller homes.

Question 2: The table below shows the durations of eruptions, X (in minutes), and the time, Y, until the next eruption of the Old Faithful geyser. We wish to determine whether there is a linear relationship between the variables.

X

1.80

1.82

1.90

1.93

1.98

2.05

2.13

2.30

2.37

2.82

3.13

3.27

3.65

Y

56

58

62

56

57

57

60

57

61

73

76

77

77

a) Perform a hypothesis test using Table I and "alpha" = 0.01

b) Find y' when x = 2.57 and interpret.

Reference no: EM13580338

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