Previously, forcing a mother smoked more than 21 cigarettes during the pregnancy. A doctor believes that the pregnancy of mothers who smoke 21 cigarettes or more is less than 4% today. She randomly selects 140 pregnant mothers and find that 2 of them smoke 21 or more cigarettes during pregnancy. Test the research statement at the = 0.05 level of significance. identify the correct Null and alternative hypothesis. use technology to find the P value. P value =_. (round to three decimal places as needed.) should one reject the null hypothesis? or should one not reject the null hypothesis?
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.
Previously, forcing a mother smoked more than 21 cigarettes during the pregnancy. A doctor believes that the pregnancy of mothers who smoke 21 cigarettes or more is less than 4% today. She randomly selects 140 pregnant mothers and find that 2 of them smoke 21 or more cigarettes during pregnancy. Test the research statement at the = 0.05 level of significance.
identify the correct Null and alternative hypothesis.
use technology to find the P value.
P value =_.
(round to three decimal places as needed.)
should one reject the null hypothesis?
or
should one not reject the null hypothesis?
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