STP 226 Statistics problems hello i want someone to help me with my homework , i will attached a picture of it thank you . STP 226 Take-home quiz, ch6 . (1

STP 226 Statistics problems hello i want someone to help me with my homework , i will attached a picture of it thank you . STP 226
Take-home quiz, ch6 . (12 points)
NAME:
Class time:
Show work . Use tables.
1. Consider the standard normal curve. Find
20.34
2. Find the area under N(0,1) curve
between -1.75 and -2.23.
3. For the the standard normal distribution curve find following:
85th percentile
4. The hatching weights of commercial chickens have approximately Normal
distribution with mean u=45 grams and standard deviation
o=4 grams
a) What percentage of chicken will have hatching weights over 50 grams?
b) For randomly selected chicken what is the probability that his hatching weigh is
between 41 and 49 grams? (hint: use Empirical Rule)
c) If a random chicken is in the 30th percentile of the distribution, what is his
weight?

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