1.) Suppose 5% of students are veterans and 143 students are involved in sports. How unusual would it be to have no more than 12 veterans involved in sports? (12 veterans is about 8.3916%) When working with samples of size 143, what is the mean of the sampling distribution for the proportion of veterans? When working with samples of size 143, what is the standard error of the sampling distribution for the proportion of veterans? Compute P(ˆp≤p^≤ 0.083916). P(ˆp≤p^≤ 0.083916) = NOTE: Give results accurate to 5 decimal places
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.
1.)
When working with samples of size 143, what is the mean of the sampling distribution for the proportion of veterans?
When working with samples of size 143, what is the standard error of the sampling distribution for the proportion of veterans?
Compute P(ˆp≤p^≤ 0.083916).
P(ˆp≤p^≤ 0.083916) =
NOTE: Give results accurate to 5 decimal places
2.)Suppose 15% of students are veterans and 138 students are involved in sports. How unusual would it be to have no more than 14 veterans involved in sports? (14 veterans is about 10.1449%)
When working with samples of size 138, what is the mean of the sampling distribution for the proportion of veterans?
When working with samples of size 138, what is the standard error of the sampling distribution for the proportion of veterans?
Compute P(ˆp≤p^≤ 0.101449).
P(ˆp≤p^≤ 0.101449) =
NOTE: Give results accurate to 5 decimal places
3.)The lengths of pregnancies in a small rural village are
In what
Between and .
If you were to draw samples of size 39 from this population, in what range would you expect to find the middle 95% of most averages for the lengths of pregnancies in the sample?
Between and .
Enter your answers as numbers. Your answers should be accurate to 1 decimal places.
4.)Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the population of potential clientele have head breadths that are normally distributed with a mean of 6.1-in and a standard deviation of 0.8-in.
In what range would you expect to find the middle 68% of most head breadths?
Between and .
If you were to draw samples of size 47 from this population, in what range would you expect to find the middle 68% of most averages for the breadths of male heads in the sample?
Between and .
Enter your answers as numbers. Your answers should be accurate to 2 decimal places.
Please note that this question does not say to use the
In what range would you expect to find the middle 95% of most pregnancies?
Between and .
Enter your answers as numbers. Your answers should be accurate to 1 decimal places.
Please note that this question is not asking you to use the Empirical Rule
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