Thé highway department wants to estimate the proportion of vehicles on highway 401 between the hours of midnight and 5 am. That are 18 wheelers. Suppose researchers for the highway department counted vehicles at different locations on the highway for several night during this time period. of the 3,413 vehicles counted, 960 were 18 wheelers. Determine the point and 99% interval estimate for the proportion of vehicles travelling highway 401 during this time period that are 18 wheelers. please find: type of distribution confidence interval left critical value right critical value point estimate Upper critical level lower critical leve
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Thé highway department wants to estimate the proportion of vehicles on highway 401 between the hours of midnight and 5 am. That are 18 wheelers. Suppose researchers for the highway department counted vehicles at different locations on the highway for several night during this time period. of the 3,413 vehicles counted, 960 were 18 wheelers. Determine the point and 99%
please find:
type of distribution
confidence interval
left critical value
right critical value
point estimate
Upper critical level
lower critical level
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