Sta sta2023 - Study guides, Class notes & Summaries
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STA2023 Key PASSED Exam Questions and CORRECT Answers
- Exam (elaborations) • 6 pages • 2024
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0.4332The weight of corn chips dispensed into a 10-ounce bag by the dispensing 
machine has been identified as possessing a normal distribution with a mean of 10.5 ounces 
and a standard deviation of 2 ounces. Suppose 100 bags of chips were randomly selected 
from this dispensing machine. Find the probability that the sample mean weight of these 100 
bags falls between 10.50 and 10.80 ounces. 
0.0188For the standard normal random variable Z, find p( Z < - 2.08) 
continuous random variable...
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STA2023 Certification Exam Questions and CORRECT Answers
- Exam (elaborations) • 4 pages • 2024
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Using the unemployment info in the table on Alpha Corporation, determine the width of each 
class.C- 5 
The following data show the number of laps run by each participant in a marathon. 46 65 55 
 A-302 
433689 
51567 
65 
Six college buddies bought each other Christmas gifts. What was mean amount 
spent?B- $178.48
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STA 2023 Test 1 GRADED A+ (ACTUAL TEST ) Questions and Answers (Solved)
- Exam (elaborations) • 16 pages • 2023
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STA 2023 Test 1 GRADED A+ (ACTUAL TEST ) Questions and Answers (Solved) 
1. interquartile range (IQR) 
Answer: Q3 Q1 
2. outlier n a modified boxplot 
Answer: above Q3, by an amount greater than 1.5 × IQRor below 
Q1, by an amount greater than 1.5 × IQR. 
3. modified boxplot 
Answer: regular boxplot constructed with these modifications: 
1.) A special symbol (such as an asterisk or point) is used to 
identify outliers asdefined above 
2.) the solid horizontal line extends only as far as the...
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STA 2023 Elementary Statistics Final_Review_STA2023_St_Petersburg_College.
- Exam (elaborations) • 12 pages • 2024
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STA 2023 Elementary Statistics
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Stats Exam 1, Top Exam Questions and answers, 100% Accurate, rated A+
- Exam (elaborations) • 20 pages • 2023
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Stats Exam 1, Top Exam Questions and answers, 100% Accurate, rated A+ 
 
 
 
Who uses statistics? - -everyone 
ex) Business- analyze the results of a marketung campaign 
 
statistical methods - -Design, Description, Inference 
 
Design - -how you plan to obtain the data 
survey, experiment, question 
 
description - -summarize the data with graphs and numerical summaries. Percent, standard deviation 
 
Inference - -use data from a random and representative sample to draw conclusions about the p...
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MATH 225N Unit 7.1 Developing Hypothesis and understanding Possible Conclusions
- Exam (elaborations) • 14 pages • 2021
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MATH 225N Unit 7.1 Developing Hypothesis and understanding Possible Conclusions>Question: Which type of test is used in the following scenario: 
The mean cutting rate of two competing table saws is to be compared. Fourteen cuts are randomly selected and measured for cutting speed to test if the speeds were different from each other. Both populations have normal distributions with known standard deviation. 
Answer: The hypothesis is two-tailed because the alternative hypothesis is Ha:μ1≠μ2...
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STATISTICS UNIT 7 EXAMPLES QUESTIONS&ANSWERS GRADED
- Exam (elaborations) • 12 pages • 2021
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STATISTICS UNIT 7 EXAMPLES GRADED<>Which graph below corresponds to the following hypothesis test? H0:μ≥5.9, Ha:μ<5.9 The alternative hypothesis, Ha, tells us which area of the graph we are interested in. Because the alternative hypothesis is μ<5.9, we are interested in the region less than (to the left of) 5.9, so the correct graph is the first answer choice. 
Question: Jolyn, a golfer, claims that her drive distance is not equal to 222 meters, on average. Several of her friend...
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MATH 225N Week 7 Bundle: Homework Assignments, Lab Assignment, Discussion (A+ Solutions & Guide)
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MATH 225N Week 7 Bundle: Homework Assignments, Lab Assignment, Discussion (A+ Solutions & Guide)
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MATH 225N WEEK 1 TO 8, LAB ASSIGNMENTS, HOMEWORK HELP, QUESTIONS & ANSWERS ALL GRADED A, DISCUSSIONS & SAMPLE EXAM QUESTIONS & ANSWERS. (Download to score an A!!)
- Package deal • 40 items • 2021
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MATH 225N WEEK 1 TO 8, LAB ASSIGNMENTS, HOMEWORK HELP, QUESTIONS & ANSWERS ALL GRADED A, DISCUSSIONS & SAMPLE EXAM QUESTIONS & ANSWERS. (Download to score an A!!)
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