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Use the data in the table to answer Questions 26 through 28.
x 3 1 4 4 5y 2 -2 5 4 8
Determine SSxx, SSxy, and SSyy.Find the equation of the regression line. What is the predicted value when x = 4?Is the correlation significant at 5% significance level (95% confidence level)? Why or why not?
Population of following N=5 scores: 0,6,4,3, and 12. Calculate μ and σ for the population. Determine the z-score for each score in the population.
Can we conclude that more than 60% of retired people in the age group would return to work? I need to do a Hypothesis Testing using only P value format (Explain in everyday words but also have the formal steps show with results) on this problem.
A random sample of 51 observations was selected from a normally distributed population. The sample mean was = 88.6, and the sample variance was s2 = 38.2.
Type the above data into the SPSS Data Editor window, or save this file as an unformatted text file and write SPSS syntax to read it in.
Give the Z- score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected
For a new HDTV the mean number of months until repairs are needed is 36.84 with a standard deviation of 3.34 months.
What assumption tests should be used? A fifth grade science teacher want to know if there is a relationship between final exam scores and overall course points after adjusting for a quiz score.
What is an example of a directional alternate hypothesis? What is an example of a non-directional alternate hypothesis?
Determine the value of correlation coefficient between these 2 variables?
The Awake Coffee Company produces gourmet instant coffee. The company wants to be sure that the average fill of coffee containers is 12.0 ounces.
Give a work example and perform a hypothetical 2 population hypothesis test. Create a scenario and do a hypothesis testing example for ANOVA. Give the result and explain what it means.
A cereal manufacturer wants to determine if the filling machine is operating to specifications. The machine is specified to fill to a 12oz level.
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