Question

1 T-test can be use for ____ traits

a immeasurable

b continuous

c discrete

d categorical

Which conclusive terminology can NOT be stated when testing a hypothesis?

Select one:
a. We reject the null hypothesis
b. Our data supports the null hypothesis
c. We have proven the null hypothesis
d. We accept the null hypothesis

Most biological variation, especially among members of the same species, is _______________ in origin.

Select one:
a. behavioral
b. environmental
c. statistical
d. maternal4 Consider the following populations and their respective variances:

Population and Variable of InterestVariance
Length of bullfrog tadpoles in section of a stream0.5
Heights of trees in a grove2
Which population would you need a greater sample size for to reduce sampling errors due to chance?

Select one:
a. Heights of trees in a grove
b. Length of bullfrog tadpoles in section of a stream

Answer 1

Please find the answers below:

Answer 1: Choice b (the student's t-test is the most widely used statistical analysis used for assessment of continuous data sets after a set of conditions)

Answer 2: Choice b (the data set obtained after scientific analysis never directly supports the null hypothesis. On the other hand, the dataset only supports or rejects the null hypothesis based upon chi square test and p-value)

Answer 3: Choice d (maternal pattern of inheritance is brought about by mitochondrial genome. This trait is commonly seen in individuals of same species but different features, such as snails)

Answer 4: Choice b (the number of tadpoles is usually less in a water body and hence it is required to increase the sample size for statistical significance)