#2 Data show that men between the ages of 20 and 29 in a general population have a mean height of 69.3 inches, with a standard deviation of 2.9 inches. A baseball analyst wonders whether the standard deviation of heights of major-league baseball players is less than 2.9 inches. The heights (in inches) of 20 randomly selected players are shown in the table. 7274717176707774727277737570737475737474 The null hypothesis is H0 The alternative hypothesis is H1 Calculate the value of the test statistic X2= What is the correct conclusion at the alpha equals 0.10 level of significance?
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
#2
Data show that men between the ages of 20 and 29 in a general population have a mean height of 69.3 inches, with a standard deviation of 2.9 inches. A baseball analyst wonders whether the standard deviation of heights of major-league baseball players is less than 2.9 inches. The heights (in inches) of 20 randomly selected players are shown in the table.
72
74
71
71
76
70
77
74
72
72
77
73
75
70
73
74
75
73
74
74
The null hypothesis is H0
The alternative hypothesis is H1
Calculate the value of the test statistic X2=
What is the correct conclusion at the alpha equals 0.10 level of significance?
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