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o-na [289]
4 years ago
12

Imagine we conduct a one-way independent ANOVA with four levels on our independent variable and obtain a significant result. Giv

en that we had equal sample sizes, we did not make any predictions about which groups would differ before the experiment and we want guaranteed control over the Type I error rate, which would be the best test to investigate which groups differ?
A. Hochberg's GT2
B. Helmert
C. Bonferroni
D. Orthogonal contrasts
Mathematics
1 answer:
fgiga [73]4 years ago
5 0

Answer:

(C) Bonferroni

Explanation:

A Bonferroni test is a type of multiple comparison test used in statistical analysis. It is used when several dependent or independent statistical tests are being performed simultaneously.Bonferroni designed a test or an adjustment to prevent data from incorrectly appearing to be statistically significant.

It is used to counteract the problem of multiple Comparisons.

The Bonferroni correction is appropriate when a single false positive in a set of tests would be a problem. It is mainly useful when there are a fairly small number of multiple comparisons and you're looking for one or two that might be significant.

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The CEO of a software company is committed to expanding the proportion of highly qualified women in the organization’s staff of
pishuonlain [190]

Answer:

Null Hypothesis, H_0 : p \geq 45%    

Alternate Hypothesis, H_A : p < 45%

Step-by-step explanation:

We are given that the proportion of women in similar sales positions across the country in 2004 is less than 45%.

The collected random sample of size 50 showed that only 18 were women.

<u><em>Let p = proportion of women in similar sales positions across the country in 2004</em></u>

So, Null Hypothesis, H_0 : p \geq 45%    

Alternate Hypothesis, H_A : p < 45%

Here, <u><em>null hypothesis states that</em></u> the proportion of women in similar sales positions across the country in 2004 is more than or equal to 45%.

On the other hand, <u><em>alternate hypothesis states that</em></u> the proportion of women in similar sales positions across the country in 2004 is less than 45%.

The test statistics that would be used here is One-sample z proportion test statistics, i.e;

                        T.S.  =  \frac{\hat p -p}{\sqrt{\frac{\hta p(1-\hat p)}{n} } }  ~ N(0,1)

Hence, the above hypothesis is appropriate for the given situation.

4 0
3 years ago
Find the missing number to make these fractions equal three fourths equal blank over eight
zysi [14]
Your answer is six. 3/4=6/8
3 0
3 years ago
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What’s 34% of 120?<br> Please help
jeka57 [31]
34% = 0.34
120 * 0.34 = 40.8
Solution: it is 40.8
4 0
3 years ago
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What is the prime factorization of 24?
Gelneren [198K]

Answer:

2 x 2 x 2 x 3, so its E

Step-by-step explanation:

3 0
3 years ago
Find the greatest common factor of 4c3 and 6m2.
Brums [2.3K]

Answer:

The GCF is 2

Step-by-step explanation:

Here, we want to find the greatest common factors of the two terms

We have the terms written in terms of the products of their multiples as follows;

4c^3 = 2 * 2 * c * c* c

6m^2 = 2 * 3 * m * m

As we can see, the greatest common factor of the two is simple the value 2

3 0
3 years ago
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