Refer to the accompanying data set and construct a 95% confidence interval estimate of the mean pulse rate of adult females; then do the same for adult males. Compare the results. Compare the results. A. The confidence intervals do not overlap, so it appears that adult females have a significantly higher mean pulse rate than adult males. B. The confidence intervals do not overlap, so it appears that there is no significant difference in mean pulse rates between adult females and adult males. C. The confidence intervals overlap, so it appears that adult males have a significantly higher mean pulse rate than adult females. D. The confidence intervals overlap, so it appears that there is no significant difference in mean pulse rates between adult females and adult males. Pulse Rates (beats per minute) Males 82 72 49 57 53 62 51 78 53 60 71 59 63 76 85 64 63 94 45 87 72 62 75 75 57 64 54 80 75 63 64 96 59 68 59 58 67 71 81 58 Females 78 92 57 63 57 82 77 88 89 54 35 65 83 74 81 62 63 76 63 65 84 80 73 77 89 88 86 90 93 93 68 90 83 82 75 56 99 75 73 76
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
Refer to the accompanying data set and construct a 95% confidence
females; then do the same for adult males. Compare the results.
Compare the results.
A. The confidence intervals do not overlap, so it appears that adult females have a significantly
higher mean pulse rate than adult males.
B. The confidence intervals do not overlap, so it appears that there is no significant difference in
mean pulse rates between adult females and adult males.
C. The confidence intervals overlap, so it appears that adult males have a significantly higher
mean pulse rate than adult females.
D. The confidence intervals overlap, so it appears that there is no significant difference in mean
pulse rates between adult females and adult males.
Pulse Rates (beats per minute)
Males
82
72
49
57
53
62
51
78
53
60
71
59
63
76
85
64
63
94
45
87
72
62
75
75
57
64
54
80
75
63
64
96
59
68
59
58
67
71
81
58
Females
78
92
57
63
57
82
77
88
89
54
35
65
83
74
81
62
63
76
63
65
84
80
73
77
89
88
86
90
93
93
68
90
83
82
75
56
99
75
73
76
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