Question

There are two types of meningitis: bacterial and viral.
Researchers are interested in understanding which type of
meningitis is more common in women. Data on ten women with
meningitis were collected. Of these ten women, 7 had bacterial
meningitis and 3 had viral meningitis. Let *?* represent the
proportion of women with bacterial meningitis in the population.
Under the null hypothesis *?*0, *?*=0.5 (bacterial
meningitis is just as common as viral meningitis). The alternative
hypothesis, *?**?*, is that *?*≠0.5

(bacterial meningitis is not as equally common in women as viral meningitis).

What is the value of the test statistic? Provide your answer as a whole number.

test statistic =

The following figure shows the null distribution for the number of people with bacterial meningitis. The probability of each outcome is given above the bars.

Assuming the null hypothesis (H0:*?*=0.5)

were true, what is the *?*-value for the two‑sided test
using the results found in this study? Provide your answer with
precision to four decimal places.

Answer #1

The P-value for the two-tailed test 0.2059

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Chi-Square
Tests
Value
df
Asymp. Sig.
(2-sided)
Pearson Chi-Square
5.341a
3
.148
Likelihood Ratio
5.123
3
.163
Linear-by-Linear
Association
5.237
1
.022
N of Valid Cases
787
a. 1 cells (12.5%)
have expected count less than 5. The minimum expected count is
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Researchers were interested in examining the impact poverty may
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Researchers were interested in whether patients with a history
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angina2 *
Taking anticoagulant drugs Crosstabulation
Taking anticoagulant
drugs
Total
Yes
No
Angina
Yes
Count
311
25
336
Expected Count
177.3
158.7
336.0
Std. Residual
10.0
-10.6
No
Count
242
470
712
Expected Count
375.7
336.3
712.0
Std. Residual
-6.9
7.3
Total
Count
553
495
1048
Expected Count
553.0
495.0
1048.0
Value
df
Asymp. Sig.
(2-sided)
Exact Sig.
(2-sided)
Exact...

Gaming and distracted eating, Part I: A group of researchers are
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A researcher is interested whether number of arrests vary across
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Q1.Researchers were interested in determining the relative
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