Author Question: The following data represent the scores of a sample of 50 randomly chosen students on a standardized ... (Read 108 times)

ss2343 · **on:** Feb 14, 2020

Question 1

To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine found in all commercial brands of cigarettes. A new cigarette has recently been marketed. The FDA tests on this cigarette yielded a mean nicotine content of 24.5 milligrams and standard deviation of 2.3 milligrams for a sample of

cigarettes. Find a 95% confidence interval for μ.

Question 2

The following data represent the scores of a sample of 50 randomly chosen students on a standardized test.

39

48

55

63

66

68

69

70

71

73

74

76

77

78

79

80

82

83

85

86

88

89

90

91

92

93

95

96

97

99

a.	Write a 95% confidence interval for the mean score of all students who took the test.

b. Identify the target parameter and the point estimator.

pangili4 · **Reply #1 on:** Feb 14, 2020

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