Which of the following null hypotheses is used to test if five population propor

Question

Which of the following null hypotheses is used to test if five population proportions are the same? a). H_0: p_1 = p_2 = p_3 = p_4 = p_5 = 25 b). H_0: p_1 = p_2 = p_3 = p_4 = 25 c). H_0: p_1 = p_2 = p_3 = p_4 = 20 d). H_0: p_1 = p_2 = p_3 = p_4 = p_5 = 20 The chi-square test of a contingency table is a test of independence for: a). A single qualitative variable b). Two qualitative variables c). Two quantitative variables d). Three or more quantitative variables For the chi-square test of a contingency table, the expected cell frequencies are found as: a). The row total multiplied by the column total divided by the sample size b). The observed cell frequency c). (r - 1)(c - 1) d). (r)(c) For the chi-square test of a contingency table, the expected cell frequencies (f_e) are found as c_ij = [(Row i total)(Column j total)]/Sample Size, which is the same as: a). The observed cell frequencies b). The cell probability multiplied by the sample size c). The row total d). The column total If a test statistic has a value of X and is assumed to be X^2 distributed with df degrees of freedom, then the p-value for a right-tailed test found by Excel is: a). CHISQ.DIST.RT(X, df) b). CHISQ.DIST.RT(df, X) c). CHISQ.INV.RT(df, p) d). CHISQ.INV.RT(p, df)

Explanation / Answer

Solution:-

1). (d)

When the null hypothesis states that there is no difference between the five population proportions, then

Ho : p1 = p2 = p3 = p4 = p5 = 0.20

2). (c)

Two quantitative variables.

3). (a)

For the chi-square test of a contingency table, the expected cell frequencies are found as:

The row total multiplied by the column total divided by the sample size.

4). (b)

The cell probability multiplied by the sample size.

5). (a)

CHISQ.DIST.RT(X,deg_freedom)

The CHISQ.DIST.RT function syntax has the following arguments:

X     Required. The value at which you want to evaluate the distribution.

Deg_freedom     Required. The number of degrees of freedom.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.