Jasica
  •   Jasica
  •   1812
  •   0

Predict the amount of sodium in a hot d

1. Predict the amount of sodium in a hot dog with 345 calories.2. Why is the prediction in problem 80 acceptable but the prediction in problem 81 not?3. Find the error in prediction (residual) for a hot dog with 180 calories.4. Find the residual for 195 calories.5. The point (x-bar, y-bar) is always on the LSRL. Find this point, and label it on your scatterplot.6. Find the standard deviation of the calories.7. Find the standard deviation ...
Pending
Not Available 31 Jan 2018 Expiry Date: 01 Feb 2018
Jasica
  •   Jasica
  •   1812
  •   0

Correlation only applies to what type(s)

1. Correlation only applies to what type(s) of relationship(s)?2. Is correlation resistant to outliers?3. Does a high correlation indicate a strong cause-effect relationship?4. Sketch a scatterplot with a correlation of about 0.8.5. Sketch a scatterplot with a correlation of about –0.5.6. Find the least-squares regression line (LSRL) for the calories-sodium data.7. Draw the LSRL on your scatterplot.8. What is the slope of this line, and w ...
Pending
Not Available 31 Jan 2018 Expiry Date: 01 Feb 2018
Jasica
  •   Jasica
  •   1812
  •   0

Are their clusters? If so, where?

1. Are their clusters? If so, where?2. Are their outliers? (Outliers in a scatterplot have large residuals.)3. If there are outliers, are they influential?4. Calculate the correlation.5. Calculate the correlation without the point (108, 149).6. Using problems 64 and 65, check your answer to problem 63,7. What two things does correlation tell us about a scatterplot?8. If I change the units on sodium to grams instead of milligrams, what happe ...
Pending
Not Available 31 Jan 2018 Expiry Date: 01 Feb 2018
Jasica
  •   Jasica
  •   1812
  •   0

What is the mode of each set of scores?

1. What is the mode of each set of scores?2. Is the score of “1” for one of the 7th graders an outlier? Test using the 1.5 IQR rule.3. What is the difference between a modified boxplot and a regular boxplot? Why is a modified boxplot usually considered better?Statistics Review Chapter 34. What are the four principles that guide the examination of data? (See page 110.)5. Graph the following hot dog data:Calories Sodium (milligrams)108 14 ...
Pending
Not Available 31 Jan 2018 Expiry Date: 01 Feb 2018
Jasica
  •   Jasica
  •   1812
  •   0

What percent of humans have a pregnancy

1. What percent of humans have a pregnancy lasting longer than 280 days? Sketch and shade.2. What percent of humans have a pregnancy lasting between 260 and 270 days? Sketch and shade.3. Would you say pregnancy length is a continuous or discrete variable? Justify.4. You have normal distributions on your TI-83. Use these functions to check your answers to problems 38, 40, 41, and 42.5. How long would a pregnancy have to last to be in the ...
Pending
Not Available 31 Jan 2018 Expiry Date: 01 Feb 2018
Jasica
  •   Jasica
  •   1812
  •   0

Using the empirical rule, find the leng

1. Using the empirical rule, find the length of the middle 99.7% of all pregnancies. Sketch and shade.2. Using the empirical rule, find the length of the shortest 2.5% of all pregnancies. Sketch and shade.3. Using the empirical rule, what percentile rank is a pregnancy of 218 days?4. What percentile rank is a pregnancy of 298 days?5. What percentile is a pregnancy of 250 days?6. What is the percentile of a pregnancy of 266 days?7. What z-sc ...
Pending
Not Available 31 Jan 2018 Expiry Date: 01 Feb 2018
Jasica
  •   Jasica
  •   1812
  •   0

The (mean or median) of a density curve

1. The (mean or median) of a density curve is the equal-areas point, the point that divides the area under the curve in half.2. The (mean or median) of a density curve is the balance point, at which the curve would balance if made of solid material.3. If a density curve is skewed to the right, the (mean or median) will be further to the right than the (mean or median).4. What is the difference between x-bar and m?5. What is the difference ...
Pending
Not Available 31 Jan 2018 Expiry Date: 01 Feb 2018
Jasica
  •   Jasica
  •   1812
  •   0

Is the median resistant to outliers?

1. Is the median resistant to outliers?2. Find the range of the litter sizes.3. Find the 5-number summary of the litter sizes.4. What is the interquartile range5. Make a boxplot of the litter sizes.6. Find the variance of the litter sizes.7. Find the standard deviation of the litter sizes.8. Is standard deviation resistant to outliers?9. Find the degrees of freedom of the litter sizes. ...
Pending
Not Available 31 Jan 2018 Expiry Date: 01 Feb 2018
Jasica
  •   Jasica
  •   1812
  •   0

Which variable, litter size or color, is

1. Which variable, litter size or color, is categorical?2. Which variable is quantitative?3. Make a bar chart of the colors.4. Make a histogram of the litter sizes.5. Make a dotplot of the litter sizes.6. Are there any outliers in the histogram or dotplot?7. Describe the shape of the histogram (symmetric or skewed).8. Find the mean of the litter sizes.9. Is the mean resistant to outliers? ...
Pending
Not Available 31 Jan 2018 Expiry Date: 01 Feb 2018
Jasica
  •   Jasica
  •   1812
  •   0

A population is a set of existing units.

1.A population is a set of existing units. TrueFalse2.If we examine some of the population measurements, we are conducting a census of the population. TrueFalse3.A random sample is selected so that on each selection from the population every unit remaining in the population has an equal chance of being chosen. TrueFalse4.A process is in statistical control if it does not exhibit any unusual variations. TrueFalse5.An example of a quant ...
Pending
Not Available 31 Jan 2018 Expiry Date: 31 Jan 2018
Showing 101 to 110 of 1812 entries

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