Question is not well presented
Assume that hybridization
experiments are conducted with peas having the property that for offspring, there is
a 0. 75 probability that a pea has green pods (as in one of Mendel's famous experiments).
Assume that offspring peas are randomly selected in groups of 18. Use the range rule of thumb to find the values separating results that are significantly low or significantly high.
Answer:
Values below 9.826 (or equal) are significantly low
Values above 17.174 (or equal) are significantly high
Step-by-step explanation:
First, we Calculate the mean.
Mean = np where n = 18, p = 0.75
Mean = 18 * 0.75
Mean = 13.5
Then we Calculate the standard deviation
S = √npq where q = 1-0?75 = 0.25
S = √13.5 * 0.25
S = 1.837
The range rule of thumb tells us that the usual range of values is within 2 of the mean and Standard deviation.
i.e.
Mean - 2(s), Mean + 2(s)
13.5 - 2(1.837), 13.5 + 2(1.837)
9.826, 17.174
Values below 9.826 (or equal) are significantly low
Values above 17.174 (or equal) are significantly high
...
