A normal distribution has a mean of 142 and a standard deviation of 3. Find the z-score for a data value of 132. Round t
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A normal distribution has a mean of 142 and a standard deviation of 3. Find the z-score for a data value of 132. Round t
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 55 ounces and a standard deviation of 3 ounces. Use the Empirical Rule. Suggestion: sketch the distribution in order to answer these questions. a) 68% of the widget weights lie between and b) What percentage of the widget weights lie between 46 and 58 ounces? c) What percentage of the widget weights lie below 61? %
The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1600 and the standard deviation is $145. 1165 1310 1455 1600 1745 Distribution of Prices 1890 2035 Q What is the approximate percentage of buyers who paid more than $1890? 2.28 X% What is the approximate percentage of buyers who paid between $1455 and $1745? What is the approximate percentage of buyers who paid between $1455 and $1600? What is the approximate percentage of buyers who paid less than $1165? What is the approximate percentage of buyers who paid between $1310 and $1600? What is the approximate percentage of buyers who paid between $1600 and $2035?