Allante Pizza delivers pizzas throughout its local market area at no charge to the customer. However, customers often tip the driver. The owner is interested in estimating the mean tip income per delivery.
To do this, she has selected a simple random sample of 12 deliveries and has recorded the tips that were received by the drivers. These data are:2.25 2.50 2.25 2.00 2.00 1.500.00 2.00 1.50 2.00 3.00 1.50Based on these sample data, what is the best point estimate to use as an estimate of the true mean tip per delivery?A) 1.875
B) 1.811
C) 1.50
D) 1.312
Q. 2Compare and contrast common causes of variation and special causes of variation.
What will be an ideal response?
Q. 3A sampling distribution for a sample of n = 4 is normally distributed with a standard deviation equal to 5. Based on this information, the population standard deviation, , is equal to 10 mph.
Indicate whether the statement is true or false
Q. 4A major insurance company believes that for drivers between 16 years of age and 60 years of age, the number of accidents per year tends to decrease as age increases.
If this is the case, a scatter diagram should show a negative relationship between the two variables. Indicate whether the statement is true or false
Q. 5In a test for determining whether two population variances are the same or different, the larger the sample sizes from the two populations, the lower will be the chance of making a Type I statistical error.
Indicate whether the statement is true or false
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