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A case-control study is conducted to assess the relationship between heavy alcohol use during the first trimester of pregnancy and miscarriage
Based on data from the National Health and Nutrition Examination Survey assume that the a height of female college students are normally distributed
Consider the different post hoc tests discussed in the readings and respond to the following:
Compute a one-way analysis of variance (ANOVA) to determine whether there are significant age differences across years in college freshman, sophomores, juniors
Call centers typically have high turnover. The director of human resources for a large bank has compiled data on about 70 former employees
Choose and calculate the appropriate analysis to compare the confidence levels of participants given consistent feedback on car color
Assume that women's height are normally distributed with a mean given by =63.4 in, and a standard deviation given by =2.7in.
The quality director for a clothing manufacturer wants to study the effect of operators and machines on the breaking strength (in pounds)
The mean lifetime for cardiac stents is 8.9 years. A medical device company has implemented some improvements in the manufacturing process and hypothesizes
Management at the local Randy Rooster Chicken Hut noted 50 percent of the customers order the crispy coating and the remainder order original coating.
There are several advantages of using a paired t-test. Since the same subjects are being tested in each of the varying conditions, those subjects
Imagine that you have population data with an average height of 5 feet 10 inches. Conduct a one-sample t-test
Compute a one-sample t-test comparing the age of your invented sample to the age of the general population of college students in traditional
A new dental bonding agent. When bonding teeth, orthodontists must maintain a dry field. A new bonding adhesive (called Smartbond) has been developed
A government has specialist who analyze the frequencies of letters of the alphabet in an attempt to decipher intercepted messages.
Heights of men on a baseball team have a bell-shaped distribution with a mean of 185cm and a standard deviation of 6 cm
An epidemiologist found five cases of "big toe cancer" in the Yukon Territory. Because there were only a few cases, the epidemiologist decided to conduct
A study is conducted to estimate the effect of a low-carbohydrate diet on cholesterol level. In this study, participants' cholesterol levels are measured
Conduct a correlation matrix using the Forbes 500 dataset. Determine which variables have a significant relationship.
Suppose we want to determine the (binomial) probability (p) of getting 8 heads in 10 flips of a 2-sided coin.
In the past, the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older individuals
Compute the correlation between age in months and number of words known.
What is an ANOVA? Why is it called ANOVA (Explain the basic ideas behind an ANOVA)?
Type/s of analysis and power analysis. I am thinking ANOVA and Pearson's target population 60 nursing students
Cross-tabulate the respondents' genders with cola preference