Cite as características que um bom diagrama de dispersão deve ter para facilitar a interpretação dos dados.

A population of values has a normal distribution with \( \mu=111.2 \) and \( \sigma=39 \). You intend to draw a random sample of size \( n=231 \). Please show your answers as numbers accurate to 4 decimal places. Find the probability that a single randomly selected value is between 109.1 and 116.8 . \( P(109.1<X<116.8)=\square \)

5 The distribution of resting pulse rates of a sample of 2000 20-year-old men is approximately normal, with a mean of 66 beats/minute and a standard deviation of 4 beats/minute. a What percentage of these men have pulse rates of: i higher than 66 ? ii between 66 and 70 ? iii between 62 and 74 ? b Approximately how many of this sample of 2000 men have pulse rates between 54 and 78 beats/minute?

If \( \mathrm{H}_{0:} \rho=0.75 \) and \( \mathrm{H}_{1:} \rho>0.75 \), then the bell-curve will be right tailed. True Oalse

\( \alpha \) (alpha) is also known as the probability of failing to reject the \( H_{0} \) when it is false. True False

Complete the statement below. point estimate confidence interval critical value the value of a statistic that estimates the value of a parameter. confidence level