Question 6: Fizz! Fizz! 6. A researcher wants to know what type of soda people prefer....

Question 6: Fizz! Fizz! 6. A researcher wants to know what type of soda people prefer. She asks 100 people if they prefer a cola from Company A or a lemon lime drink from Company B. Identify the observational unit(s) and variable(s) for this study.

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

A researcher wants to know if the proportion of people that prefer whiskey to wine person...

A researcher wants to know if the proportion of people that prefer whiskey to wine person instruction is the same at three local bars. A sample of people at each bar was asked about their preference. The data collected is below. Anglelos Romans Guys WHiskey 197 212 133 Wine 23 33 10 Perform the test of whether the proportions of preference are the same for each bar. Your answer must include each of the following parts: a. What hypotheses are...

A public health researcher wants to know whether a new tax that was placed on soda...

A public health researcher wants to know whether a new tax that was placed on soda has had any impact on consumer behavior (whether people continued to buy soda). Before the new tax, convenience stores in the city sold an average of µ = 410, sugar filled beverages per day with σ = 60. The distribution was normal. Following the new tax, data were collected for a sample of n = 9 days and the new mean was M =...

A researcher wants to know if the length of sentences received for a particular type of...

A researcher wants to know if the length of sentences received for a particular type of crime was the same for men and women. The length of sentence received was recorded for a random sample of men and women. The data, in years, are listed below. Use the Wilcoxon rank sum test to test the claim that there is no difference between the sentences received by men and the sentences received by women. Use α = 0.05. Men 6 18...

Question 4 A researcher wants to know the relationship between murder and robbery. The researcher recorded...

Question 4 A researcher wants to know the relationship between murder and robbery. The researcher recorded the number of murders and robberies per 100,000 population for a random selection of cities. Help the researcher to find the relationship between the two variables. Murders, x 2.4 2.7 5.6 2.6 2.1 3.3 6.6 5.7 Robberies, y 25 14 151 91 80 49 173 96 a. Calculate the correlation coefficient, R. Interpret the calculated value of R. b. Briefly comment on...

2. A researcher for Netflix wants to know if people have different preferences for two shows:...

2. A researcher for Netflix wants to know if people have different preferences for two shows: Friends and The Office. The researcher recruits 7 people. Each person watches five minutes of Friends and rates the show on a scale of 0-10, where 0 means they hate it and 10 means they love it. Then each person watches five minutes of The Office rates the show on a scale of 0-10. Assume that you are working at the .05 level of significance. The researcher obtains...

A researcher wants to know whether or not a literacy intervention is really helping people read more proficiently.

A researcher wants to know whether or not a literacy intervention is really helping people read more proficiently. She gives a sample of students a pre-test before they start the intervention and then a post-test when they complete it. Conduct a Dependent-Samples t-test using the data below to test the hypothesis that this intervention works. Pre-test Post-test 4 10 3 8 4 7 5 10 3 7 4 8 Mean 3.833 8.333...

Dandee Donuts wants to determine if there are differences in what donuts people prefer. The research...

Dandee Donuts wants to determine if there are differences in what donuts people prefer. The research hypothesis is that there is a difference between donuts. They consult their records and pick a random selection of days for each donut and write the count of how many donuts were sold. The data set is below: The Dandee Donut The Sour Cream Donut White Frosted Donut 560 435 200 485 490 235 787 327 157 324 599 268 580 430 215 672...

1. A researcher wants to know what kind of exercising is most likely to lead to...

1. A researcher wants to know what kind of exercising is most likely to lead to improve people’s moods. He has participants engage in one month of regular workouts (cardio, weight training, or yoga) and then has them complete a mood measure (1-10, higher scores = better mood). Is there a significant difference in groups? Hand calculate the ANOVA using a significance level of .05 and then check your work using SPSS. Cardio Weights Yoga 8 9 7 7 5...

Restate the question that the researcher is investigating? What type of test is appropriate for this...

Restate the question that the researcher is investigating? What type of test is appropriate for this question? Write out the model statements in words (make sure you include null model too) What are the hypotheses (all of them) Run the appropriate statistical test in Minitab (for this example you do not need to check for normality, variance, outliers etc, just run the test). Paste the output here. Paste it so it is easy to read. Run a post-hoc test if...

Question 1: A researcher wants to know whether supplements affect how long the undead can go...

Question 1: A researcher wants to know whether supplements affect how long the undead can go without requiring human blood. To investigate this, she took one sample of vampires and one sample of zombies. Half the vampires and half the zombies received a placebo, while the other half of vampires and zombies received a supplement. She then recorded how many days the vampires and zombies could go without feeding. The goal of the study was to investigate three different things:...

Subjects