**$ 25.00**

**Stat200_final exam newA++USE AS A GUIDE ONLY**

- From Business, Accounting

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True or False. *Justify for full credit.* (25 pts)

(a) The normal distribution curve is always symmetric to its mean.

*True . this is because the mean, median and mode all lie about the same position.*

(b) If the variance from a data set is zero, then all the observations in this data set are identical.

*True. The variance is a measure of dispersion from the mean.So if the data set are identical then it would imply that the deviation from the mean is equal to zero.*

*C P*(*A*AND*A* *c* )1, where*A* *c* isthecomplementof*A*.

*True. This is the case because the maximum probability in a given sample space is equal to 1.Hence if an element is not in thye sample space of A then it is in the complement of A. However the sum of the two sample spaces must always add up to 1.*

dIn a hypothesis testing, if the p-value is less do not have sufficient evidence to reject the null hypothesis.

*False. If the p value is less we fail to reject the null hypothesis.We fail to reject the null hypothesis when the p value is greater.*

(e) The volume of milk in a jug of milk is 128 oz. The value 128 is from a discrete data set.

*False. Volume of milk is continuous as it can assume any value between values of whole numbers.It cannot be counted as whole values.*

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**2. **Complete the frequency table with frequency and relative frequency. (5 pts)

Filled as shown below;

Check out time(In minutes)

Frequency

Relative frequency

1.0-1.9

2

2/25 = 0.08

2.0-2.9

8

8/25 = 0.32

3.0-3.9

10

10/25 = 0.40

4.0-4.9

5

5/25 = 0.20

TOTAL

25

1

**stat200_final exam newA++USE AS A GUIDE ONLY**

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- Submitted On 28 Jun, 2015 09:08:05

**NUMBER1TUTOR****Rating :**87**Grade :****A+****Questions :**0**Solutions :**5072**Blog :**3**Earned :**$13333.37