Microsoft Office Tutorials and References

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(f) Print the ﬁnal spreadsheet to ﬁt onto one page (if you need help

(g) On your printout, draw a diagram of this 95 % conﬁdence interval by

hand.

(h) Save the ﬁle as: yield3.

2. Suppose that a ﬁsh hatchery in the state of Colorado has asked you to determine

the average weight of the trout they are releasing into streams and lakes in

Colorado. If the ﬁsh are too small, licensed ﬁshermen complain about the

undersized ﬁsh being caught. If the ﬁsh are too large, the rate of feeding the ﬁsh

is too high (i.e., ﬁsh size increases with the amount of feed), it costs the state

more to feed the ﬁsh than was built into the hatchery budget.

Let’s suppose that the state wants the average weight of the trout released into

streams and lakes from a ﬁsh hatchery to be 308 grams (g) or 11 oz. (Note:

There are 28 g in one ounce.) Suppose you have been asked to analyze the

hypothetical data in Fig.
3.11
which gives the weight of a random sample of

trout released during the past week from a Colorado hatchery. The hypothetical

data are given in Fig.
3.11
.

Fig. 3.11

Worksheet data for Chap. 3: practice problem #2

Create an Excel spreadsheet with these data.

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