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1. How many rectangles are there in a line of fifteen squares where sides are lined up with the adjacent sides touching the entire length of the side?
2. If all the diagonals of a regular pentagon are drawn, how many triangles are formed?
3. If a 75-degree sector of a circle rotates around the center of a circle in 75-degree movements, how many sector movements will be needed for the sector to land directly in its original position?
4. A steel band is fitted around the equator. The band is removed and cut, and an additional 10 feet is added. The band now fits more loosely than it did before. How high off the ground is the band?
5. Using straight lines, connect these nine dots with the fewest number of lines without raising your pencil.
o o oo o oo o o
Create a 99% confidence interval estimate of population mean amount of paint included in a 1 gallon can.
Show the complete ANOVA table for this test including the test statistic. The null hypothesis is to be tested at 95% confidence. Determine the critical value for this test. What do you conclude?
Is there a significant difference between the lengths of front and rear legs of a certain breed of horses. The results of the measurements in inches made in 10 of these animals are:
question a large company is concerned about turnover so it commissions a survey that will be given to a random group of
In the text, a correlation matrix was described. Using your own words, ex- plain what is meant by a correlation matrix. What values appear along the diagonal of a correlation? How do we account for these values?
question a convenience store owner hypothesizes that the median number of snow cones he sells per day is 36. a random
Scrap rates per thousand (parts whose defects cannot be reworked) are compared for 5 randomly selected days at three plants. Does the data prove a significant difference in mean scrap rates?
The clinic estimates that the true population standard deviation is around $2,100. If the confidence level is 95%, find the required sample size in order to meet the desired accuracy.
a machine cuts steel to length for nails. the mean lenght of a nail is 43 millimeters. there is concern that the
A random sample of 16 federal inmates is selected. What is the probability that exactly 12 are serving time for drug dealing?
What is the probability that exactly 9 of the children are cured? Report your answer to four decimal places, rounding in the usual way?
in a recent poll 778 adults were asked to identify their favorite seat when they fly and 492 of them chose a window
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