Adistribution and the observed frequencies of the values of a variable from a simple random sample of the population are provided below. use the chi-square goodness-of-fit test to decide, at the specified significance level, whether the distribution of the variable differs from the given distribution. distribution: 0.125, 0.25, 0.3125, 0.3125 observed frequencies: 16, 22, 21, 37 significance levelequals0.05 determine the null and alternative hypotheses. choose the correct answer below.
a: h0: the distribution of the variable differs from the given distribution.
ha: the distribution of the variable is the same as the given distribution.
b. h0: the distribution of the variable differs from the normal distribution.
ha: the distribution of the varibale is the normal distribution.
c. the distribution of the variable is the same as the given distribution.
ha. the distribution of the variable differs from the given distribution.
d. the expected frequencies are all equal to 5.