Cranberry juice It’s common folk wisdom that drinkingcranberry juice can help prevent urinary tract infections inwomen. In 2001 the British Medical Journal reported theresults of a Finnish study in which three groups of50 women were monitored for these infections over 6months. One group drank cranberry juice daily, another group drank a lactobacillus drink, and the third drank nei-ther of those beverages, serving as a control group. In the control group, 18 women developed at least one infection,compared to 20 of those who consumed the lactobacillusdrink and only 8 of those who drank cranberry juice. Doesthis study provide supporting evidence for the value ofcranberry juice in warding off urinary tract infections?a) Is this a survey, a retrospective study, a prospectivestudy, or an experiment? Explain.b) Will you test goodness-of-fit, homogeneity, orindependence?c) State the hypotheses.d) Test the conditions.e) How many degrees of freedom are there?f) Find x2and the P-value.g) State your conclusion. h) If you concluded that the groups are not the same, ana-lyze the differences using the standardized residuals of your calculations.
Cranberry juice It’s common folk wisdom that drinkingcranberry juice can help prevent urinary tract infections inwomen. In 2001 the British Medical Journal reported theresults of a Finnish study in which three groups of50 women were monitored for these infections over 6months. One group drank cranberry juice daily, another group drank a lactobacillus drink, and the third drank nei-ther of those beverages, serving as a control group. In the control group, 18 women developed at least one infection,compared to 20 of those who consumed the lactobacillusdrink and only 8 of those who drank cranberry juice. Doesthis study provide supporting evidence for the value ofcranberry juice in warding off urinary tract infections?a) Is this a survey, a retrospective study, a prospectivestudy, or an experiment? Explain.b) Will you test goodness-of-fit, homogeneity, orindependence?c) State the hypotheses.d) Test the conditions.e) How many degrees of freedom are there?f) Find x2and the P-value.g) State your conclusion. h) If you concluded that the groups are not the same, ana-lyze the differences using the standardized residuals of your calculations.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Cranberry juice It’s common folk wisdom that drinking
cranberry juice can help prevent urinary tract infections in
women. In 2001 the British Medical Journal reported the
results of a Finnish study in which three groups of
50 women were monitored for these infections over 6
months. One group drank cranberry juice daily, another
cranberry juice can help prevent urinary tract infections in
women. In 2001 the British Medical Journal reported the
results of a Finnish study in which three groups of
50 women were monitored for these infections over 6
months. One group drank cranberry juice daily, another
group drank a lactobacillus drink, and the third drank nei-
ther of those beverages, serving as a control group. In the
ther of those beverages, serving as a control group. In the
control group, 18 women developed at least one infection,
compared to 20 of those who consumed the lactobacillus
drink and only 8 of those who drank cranberry juice. Does
this study provide supporting evidence for the value of
cranberry juice in warding off urinary tract infections?
a) Is this a survey, a retrospective study, a prospective
study, or an experiment? Explain.
b) Will you test goodness-of-fit, homogeneity, or
independence?
c) State the hypotheses.
d) Test the conditions.
e) How many degrees of freedom are there?
f) Find x2
and the P-value.
g) State your conclusion.
compared to 20 of those who consumed the lactobacillus
drink and only 8 of those who drank cranberry juice. Does
this study provide supporting evidence for the value of
cranberry juice in warding off urinary tract infections?
a) Is this a survey, a retrospective study, a prospective
study, or an experiment? Explain.
b) Will you test goodness-of-fit, homogeneity, or
independence?
c) State the hypotheses.
d) Test the conditions.
e) How many degrees of freedom are there?
f) Find x2
and the P-value.
g) State your conclusion.
h) If you concluded that the groups are not the same, ana-
lyze the differences using the standardized residuals of
lyze the differences using the standardized residuals of
your calculations.
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