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The weight of a bag of corn chips is normally distributed with a mean of 22 ounces and a standard deviation of ½ ounces. Answer these questions.
a) What is the probability that a bag of corn chips is less than 20 ounces?
b) What is the probability that a bag of corn chips weighs more than 21 ounces?
c) What is the probability that a bag of corn chips weighs between 20.75 and 23.25 ounces?
Test whether the gender distribution for basketball fans is significant different from general college by proportion test.
The National Survey of Student Engagement (NSSE) surveys freshmen and seniors about their level of engagement in campus and classroom activities that enhance learning.
in a standard normal distribution what must z be such that p-zlt z lt z
A Pew research poll was conducted to investigate opinions about global warming. The respondents who answered yes when asked if there is solid evidence that the earth is getting warmer were then asked to select a cause of global warming.
Use PHStat to make a box-whisker plot. If PHSTAT has yet to be installed, calculate Xmin, Xmax, Q 1 , Q 3 and median using equation in Class Notes-Quartiles, Percentile & Dectiles.
Chi-square test for independence of attributes - Describe why a x 2 test of the resulting contingency table is appropriate for such an investigation.
Find the distance between each pair of points. If necessary round answers to two decimal places. Find the midpoint of each line segment with the given endpoints.
the thickness of manufactured metal plates is the variable of interest. due to many factors such as slight variations
Using Coefficient of Variation determine in which year do the ages show a more dispersed distribution? Show your complete work and support your answer.
Assume that the average person in America weighs 150 pounds (μ). You want to determine whether colleges students weigh less than the average America, Following are the weights collected on a sample of colleges students: 120, 105, 166, 170, 145, 14..
Explain the difference between the null and alternative hypothesis. Which one can be proven in a statistical sense?
A company produces calculators in batches of 64. Four out of every 100 calculators are defective. State the random variable for this situation and list its values.
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