Question
In: Math
A researcher wishes to determine whether there is a significant relationship between the gender of psychology...
A researcher wishes to determine whether there is a significant relationship between the gender of psychology students and the refreshment drink they prefer. The results obtained from a survey of students are presented in the following table: Preferred Drink Gender Water Coffee Soda Total Male 46 29 40 115 Female 29 36 70 135 Total 75 65 110 250.
Perform an appropriate two-tailed hypothesis test at α = 0.05. If a significant result is obtained, determine the strength of the relationship. Show all four decision making steps. (20)
Solutions
milcah answered 5 months agoRelated Solutions
A researcher wishes to determine whether there is a relationship between the Campus at which SACAP...
A researcher wishes to determine whether there is a relationship
between the Campus at which SACAP students are based and their
statistics anxiety level. The results of the subsequent survey are
given in the following table:
Statistics anxiety level
Campus
Low
Medium
High
Total
Online
13
30
67
Cape Town
58
70
22
Johannesburg
26
34
30
Total
Perform an appropriate hypothesis test at α = 0.01. If a
significant result is obtained, determine the strength of the
relationship. Show...
In a random sample of patients with oropharyngeal cancer ; the researcher wishes to determine if there is a relationship between gender and the type of oropharyngeal cancer .
In a random sample of patients with oropharyngeal
cancer ; the researcher wishes to determine if there is a
relationship between gender and the type of oropharyngeal cancer .
The study has an alpha of 0.05 and a P value = 0.01.Question 1:what is the dependent variable?Q2; what would be an appropriate test for testing for
null hypothesis? Explain?Q3 : what decision should be made about the null
hypothesis? Explain?Q4 : If this decision is not correct , what potential...
We seek to determine whether or not there is a relationship between gender and preference for...
We
seek to determine whether or not there is a relationship between
gender and preference for ice
cream flavor. My
data come from a hypothetical survey of 920 people that asked for
their preference of 1 of the above
3
ice cream flavors. Here are the data:
Flavor
Chocolate
Vanilla
Strawberry
Total
Gender
Men
100
120
60
280
Women
350
200
90
640
Total
450
320
150
920
a. State the
Null and Alternative hypotheses. (2)
b. Assuming
the Null Hypothesis is correct, find...
We seek to determine whether or not there is a relationship between gender and preference for...
We seek to determine whether or not there is a relationship
between gender and preference for ice cream flavor. My data come
from a hypothetical survey of 920 people that asked for their
preference of 1 of the above 3 ice cream flavors. Here are the
data:
Flavor
Gender Chocolate Vanilla Strawberry Total
Men 100 120 60 280
Women 350 200 90 640
Total 450 320 150 920
a. State the Null and Alternative hypotheses.
b. Assuming the Null Hypothesis...
A researcher would like to know whether there is a significant relationship between Verbal skills and...
A researcher would like to know whether there is a significant
relationship between Verbal skills and Math skills in population of
high school students. A sample of n = 200 students is
randomly selected and each student is given a standardized Verbal
skills test and a standardized Math skills test.
Based on the test results, students are classified as High or
Low in Verbal skills and Math skills.
The results are summarized in the following frequency
distribution table (i.e., the...
A researcher would like to know whether there is a significant relationship between Verbal skills and...
A researcher would like to know whether there is a significant
relationship between Verbal skills and Math skills in population of
high school students. A sample of n = 200 students is
randomly selected and each student is given a standardized Verbal
skills test and a standardized Math skills test.
Based on the test results, students are classified as High or
Low in Verbal skills and Math skills.
The results are summarized in the following frequency
distribution table (i.e., the...
A researcher wants to determine whether there is a relationship between age and mode of shopping....
A researcher wants to determine whether there is a relationship
between age and mode of shopping. In a random sample of 18- to
21-year-olds, 140 of 185 people shopped online more often than in
stores. In a random sample of 40- to 43-year-olds, 90 of 155 shops
online more often than in stores. What is the margin of error for a
95% confidence interval for the difference between the proportions
of shoppers in these age groups who shop online more...
An emergency service wishes to determine whether a relationship exists between the outside temperature and the...
An emergency service wishes to determine whether a relationship
exists
between the outside temperature and the number of emergency calls
it receives
for a 7-hour period. The data are shown. (25 points)
Temperature x 25 10 27 30 33
No. of calls y 7 4 8 10 11
a) Find the correlation coefficient r (If you use any software or
online calculator, please
take the screenshot. You will get extra points if you do by
hand.)
b) Find the regression...
In a cognitive psychology experiment, the researcher is interested in whether encoding condition has a significant...
In a cognitive psychology experiment, the researcher is
interested in whether encoding condition has a significant effect
on memory for a list of words. She recruits 32 subjects to
participate in the experiment. Each recruited subject is randomly
assigned to either encoding condition A or encoding condition B.
The researcher would like to leave the hypothesis non-directional
without predicting which encoding condition would lead to better
memory, and she sets the significance level at α = .05 for a
two-tailed...
2. A researcher wishes to determine whether there is a difference in the average age of...
2. A researcher wishes to determine whether there is a
difference in the average age of elementary school, high school,
and community college teachers. Teachers are randomly selected from
each group. Their ages are recorded below. Test the claim that at
least one mean is different from the others. Use α = 0.01.
Resource: The One-Way ANOVA
Identify the null hypothesis, Ho, and the alternative
hypothesis, Ha.
Determine whether the hypothesis test is left-tailed,
right-tailed, or two-tailed.
Find the critical...
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