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1. Using the Raw Data State a relevant and useful "ANOVA Type" hypothesis for these 3 populations. This Hypothesis should compare the means between the 3.
2. Perform the 5 steps of hypothesis testing procedure
3. Please present the calculations and results and Graphs
4. Make all possible observations and interpret the results
Raw Data New Jersey gasoline prices of 30 Exxon, Shell, and Sunoco stations
(Ranked from lowest to highest price)
Exxon Shell Sunoco
2.71 2.71 2.71
2.72 2.71 2.71
2.73 2.72 2.72
2.74 2.72 2.72
2.76 2.76 2.76
2.76 2.78 2.76
2.76 2.78 2.79
2.77 2.78 2.79
2.78 2.79 2.79
2.79 2.79 2.79
2.81 2.79 2.79
2.82 2.82 2.79
2.82 2.82 2.81
2.84 2.82 2.82
2.85 2.82 2.84
2.86 2.85 2.85
2.86 2.86 2.86
2.89 2.86 2.86
2.99 2.86 2.86
3.79 3.72 3.76
X is a continuous random variable uniformly distributed on [20, 45] that is, the end points c = 20 and d = 45.
Find out the following probabilities. Probability that exactly 27 items will be good.
Solve different inventory control problems using an appropriate OR method.
The difference between a random variable and a probability distribution is: A. A random variable does not include the probability of an event. B. A random variable can only assume whole numbers
Construct the 95% confidence interval for the proportion of students with at least one injury.
Do the above values appear to be in statistical control, justify your answer?
Assume that in a hypothesis test with null hypothesis Ho: μ = 14.0 at a= 0.05, that a value of 13.0 for the sample mean results in the null hypothesis not being rejected. That corresponds to a confidence interval result of:
Times spent studying by students in the week before final exams follow a normal distribution with standard deviation 8 hours. A random sample of four students was taken in order to estimate the mean study time for the population of all students.
1) There are 500 employees in a firm, 45% are female. A sample of 60 employees is selected randomly. a) Determine the standard error of the proportion.
The following table shows SAT scores (on the old SAT with only two sections) for a sample of students. Give the equation of the least squares regression equation.
What critical value should the company officials use to determine the rejection region?
A consumer organization wants to know if there is a difference in the price of a particular toy at three different types of stores. The price of the toy was checked in a sample of five discount toy stores, five variety stores
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