In a hypothesis test with hypotheses H.:u274 and H, u<74, a random sample of 40 elements selected from the population produced a mean of 67.8 and a standard deviation of 11.9. The significance level is 5%. Assume the population is normally distributed. What is the value of the test statistic, t, rounded to three decimal places? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).

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A: Given that  x̄ = 66.3 ,  μ = 67 , s = 1.9 , n = 32  Note: According to bartleby experts question…

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Q: In a hypothesis test with hypotheses Ho : µ 2 74 and H1 : µ < 74, a random sample of 20 elements…

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A: Given : sample size, n = 35 sample mean, x̄ = 9.48 sample standard deviation,s= 1.7…

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.