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In a consumer research study, several Meijer and Walmart stores were surveyed at random and the...
In a consumer research study, several Meijer and Walmart stores were surveyed at random and the average basket price was recorded for each. You wish to determine if the average basket price for Meijer is different from the average basket price for Walmart. It was found that the average basket price for 18 randomly chosen Meijer stores (group 1) was $49.451 with a standard deviation of $12.3146. Similarly, a random sample of 25 Walmart stores (group 2) had an average basket price of $56.847 with a standard deviation of $13.7821. Perform a two independent samples t-test on the hypotheses Null Hypothesis: μ1 = μ2, Alternative Hypothesis: μ1 ≠ μ2. What is the test statistic and p-value of this test? You can assume that the standard deviations of the two populations are statistically similar.
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Solutions
milcah answered 1 year agoRelated Solutions
In a consumer research study, several Meijer and Walmart stores were surveyed at random and the...
In a consumer research study, several Meijer and Walmart stores
were surveyed at random and the average basket price was recorded
for each. It was found that the average basket price for 35 Meijer
stores was $49.363 with a standard deviation of $10.631. Similarly,
53 Walmart stores had an average basket price of $59.558 with a
standard deviation of $14.543. If a 95% confidence interval for the
difference between the true average basket prices of Meijer versus
Walmart is calculated,...
PART I In a consumer research study, several Meijer and Walmart stores were surveyed at random...
PART I
In a consumer research study, several Meijer and Walmart stores
were surveyed at random and the average basket price was recorded
for each. It was found that the average basket price for 49 Meijer
stores was $52.202 with a standard deviation of $11.091. Similarly,
51 Walmart stores had an average basket price of $65.968 with a
standard deviation of $14.839. If a 99% confidence interval for the
difference between the true average basket prices of Meijer versus
Walmart...
In a consumer research study, several Meijer and Walmart stores were surveyed at random and the average basket price was recorded for each.
In a consumer research study, several Meijer and Walmart stores were surveyed at random and the average basket price was recorded for each. It was found that the average basket price for 37 Meijer stores was $47.268 with a standard deviation of $10.83. Similarly, 48 Walmart stores had an average basket price of $67.244 with a standard deviation of $11.669. If a 99% confidence interval for the difference between the true average basket prices of Meijer versus Walmart is...
Walmart (WMT) is robotic janitors in some of its stores. Walmart has purchased several Autonomous Cleaner...
Walmart (WMT) is robotic janitors in some of its stores. Walmart
has purchased several Autonomous Cleaner (Auto-C) robots from Brain
Corporation. An Auto-C robot looks like a Zamboni, the machine used
to clean ice rinks. The robots scrub floors and clean store aisles.
Sensors in the robots allow them to navigate around customers and
other objects, so the robots can be used during store operating
hours.
Management at Walmart has stated that the robots are to be used
to free...
A random sample of 100 adults were surveyed, and they were asked if the regularly watch...
A random sample of 100 adults were surveyed, and they were asked
if the regularly watch NFL games. They were asked in
their favorite team had ever won the Super Bowl.
Won Super Bowl
Did not win Super Bowl
Row total
Watch
games
24
56
80
Do not
watch games
11
9
20
Column
total
35
65
100
Find:
a) P(watch NFL games given their favorite team won the Super
Bowl)
b) P(favorite team won the Super Bowl and watch NFL...
A research conducted a study of consumer behavior in wine drinkers. She manipulated several factors between-subjects...
A research conducted a study of consumer behavior in wine
drinkers. She manipulated several factors between-subjects in a
multi-factor design. First, she had participants sample three
different wines, ranging in cost from low ($5) to medium ($10) to
high ($20). Second, she labeled them as costing $6 or $90. So, for
example, a person might receive a cheap wine labeled as costing $6
or a cheap wine labeled as costing $90. Third, she recruited casual
wine drinkers and expert wine...
Workers in several industries were surveyed to determine the proportion of workers who feel their industry...
Workers in several industries were surveyed to determine the
proportion of workers who feel their industry is understaffed. In
the government sector, 37% of the respondents said they were
understaffed, in the health care sector 33% said they were
understaffed and in the education sector 28% said they were
understaffed (USA Today, January 11, 2010). Suppose that 200
workers were surveyed in each industry.
b) Assuming the same sample size will be used in each industry,
how large would the...
In 1990 a random sample of 136 people surveyed showed that 39 were vegetarians. In 2015...
In 1990 a random sample of 136 people surveyed showed that 39
were vegetarians. In 2015 a similar survey showed that in a random
sample of 95 people, 36 were vegetarians. Test the claim that the
proportion of people that are vegetarians has changed. Use a 5%
level of significance
Ho:
H1:
Statistic:
Conclusion:
2. A random sample of 395 people were surveyed and each person was asked to report...
2. A random sample of 395 people were surveyed and each person
was asked to report the highest education level they obtained. The
data that resulted from the survey is summarized in the following
table:
High School Bachelors
Masters Ph.d. Total
Female 60 54 46
41 201
Male 40 44 53
57 194
Total 100 98 99
98 395
a. Are gender and education level dependent at 5% level of
significance? (6mks)
b.State and explain two methods of studying...
Is gender independent of education level? A random sample of 395 people were surveyed and each...
Is gender independent of education level? A random sample of 395
people were
surveyed and each person was asked to report the highest education
level they
obtained. The data that resulted from the survey is summarized in
the following table:
High School Bachelors Masters Ph.d. Total
Female 60 54 46 41 201
Male 40 44 53 57 194
Total 100 98 99 98 395
Question: Are gender and education level dependent at 5% level of
significance? In
other words, given...
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