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In a typical week, how many times do you eat at a fast food restaurant? The following data was then gathered: Find out the probability that the student eats at a fast food restaurant 5 or more t
For a sample with mean = 50 and standard deviation = 10. Find out the z-score for each of the following X values:
For sample with standard deviation of 10, a score of X = 44 corresponds to z-score of 0.50. Based on this info, find out the sample mean?
Find out each of the following probabilities (P) for the normal distribution.
For the normal distribution, find out the z-score value(s) that separate the area of distribution into sections so that there is.
The distribution of scores on SAT is approximately normal with mean of 500 and standard deviation of σ = 100. Find out the percentage have SAT scores greater than 550?
Find out the z-score corresponding to each of following sample means obtained from this population.
A random sample is obtained from the normal population with mean of µ = 80 and standard deviation of σ = 8. A sample mean greater than 86 for a sample of n = 4 scores.
The distribution of SAT scores is normal with mean of µ = 500 and standard deviation of σ = 100. What range of values must contain sample mean 95% of the time?
Now assume the distribution of SAT scores is normal with mean of µ = 500 and standard deviation σ is unknown. What range of values must contain sample mean 95% of the time?
Illustrate out the term random sampling and why is it so important? Please address both parts of this question.
Conduct a complete statistical analysis of the data to find out whether the hypothesis for RQ2 is verified or not verified.
Conduct a complete statistical analysis of the data to find out whether the hypothesis for RQ3 is verified or not verified.
Kitty Kennels wishes to be sure that the cats receive at least 5 ounces of protein and at least 3 ounces of fat per day. Determine the cost of this plan?
Copy and paste your computations for the three problems from Excel to Word and submit one Word document with your clearly labeled computations and interpretations.
Make use of general birth-death process to find out: i) expected number of customers in shop ii) probability that manager will be helping serve customers.
Describe Skewness and write down the Karl-Pearson’s co-efficient of skewness.
Prove Distributive law using Venn diagram.
Write down the difference between mean deviation and standard deviation.
In the normal distribution, 7% of the items are under 35 and 89% of the items are under 63. Specify the mean and standard deviation of distribution.
Write down the normal equations of parabola.
What do you understand by memoryless property of the exponential distribution?
Test the hypothesis that annual incomes of corporate trainers in areas of greater than 500,000 are considerably greater than those in areas of less than 100,000. Utilize 5% level of risk.
Sample mean is 99 and standard deviation is 6. Carry out a hypothesis test using.04 level of significance to find out if there is a dissimilarity between population means.
At.02 significance level is it sensible to conclude that mean number of shoes sold at mall stores is greater than at outlet stores?