The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 49 ounces and a standard deviation of 3 ounces. Use the Standard Deviation Rule, also known as the Empirical Rule (see image below). Do not use normalcdf on your calculator. Suggestion: sketch the distribution in order to.answer these questions. a) 99.7% 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 55 ? 34% 34% 2.35% 2.35% 13.5% 13.5% 0.15% 0.15%

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Question 12
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget
weights have a mean of 49 ounces and a standard deviation of 3 ounces.
Use the Standard Deviation Rule, also known as the Empirical Rule (see image below). Do not use
normalcdf on your calculator.
Suggestion: sketch the distribution in order to.answer these questions.
a) 99.7% 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 55 ?
34%
34%
2.35%
2.35%
13.5%
13.5%
0.15%
0.15%
-35
-2s
-1s
0.
1s
25
Transcribed Image Text:Question 12 The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 49 ounces and a standard deviation of 3 ounces. Use the Standard Deviation Rule, also known as the Empirical Rule (see image below). Do not use normalcdf on your calculator. Suggestion: sketch the distribution in order to.answer these questions. a) 99.7% 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 55 ? 34% 34% 2.35% 2.35% 13.5% 13.5% 0.15% 0.15% -35 -2s -1s 0. 1s 25
Question 13
The time to complete an exam is approximately Normal with a mean of 43 minutes and a standard deviation of
5 minutes.
The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to
the standard deviation. Fill in the indicated boxes.
H = 43
o = 5
H-30 u-20
H+ 20 µ+30
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Transcribed Image Text:Question 13 The time to complete an exam is approximately Normal with a mean of 43 minutes and a standard deviation of 5 minutes. The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill in the indicated boxes. H = 43 o = 5 H-30 u-20 H+ 20 µ+30 Question Help: Written Example Message instructor Submit Question Jump to Answer
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