MATH302

MATH302 Week 5 TEST COMPLETE QUESTIONS AND ANSWERS 2023 GRADED A+. Part 1 of 4 - Z-interval for Unknown Questions 7.0/ 7.0 Points Question 1 of 20 1.0/ 1.0 Points There is no prior information about the proportion of Americans who support gun control in 2019. If we want to estimate 93% confidence interval for the true proportion of Americans who support gun control in 2019 with a 0.18 margin of error, how many randomly selected Americans must be surveyed? Answer: (Round up your answer t...

MATH302 Week 3 TEST COMPLETE QUESTIONS AND ANSWERS 2023 GRADED A+. Part 1 of 6 - Binomial Distribution 4.0/ 5.0 Points Question 1 of 201.0/ 1.0 Points A coin is flipped 30 times. What is the probability of getting 15 or more heads? Round answer to 4 decimal places. Answer: 0.5722 Answer Key:0.5722|.5722 Feedback: P(x f$displaystyle geq 15)f$ = 1 - P(x f$displaystyle leq 14)f$ in Excel =1-BINOM.DIST(14,30,0.5,TRUE) Question 2 of 200.0/ 1.0 Points Approximately 10% of all people are le...

MATH302 Week 2 TEST COMPLETE QUESTIONS AND ANSWERS 2023 GRADED A+. Tests & Quizzes Tests & Quizzes Week 2 Knowledge Check Homework Practice Questions Return to Assessment List Part 1 of 8 - Measures of the Spread of Data Knowledge Check Homework Question 1 of 20 2.0/ 3.0 Points 1.0/ 1.0 Points Cholesterol levels were collected from patients two days after they had a heart attack (Ryan, Joiner & Ryan, Jr, 1985). Find the standard deviation. See Attached Excel for Data. cholesterol 8...

MATH302 Week 4 TEST COMPLETE QUESTIONS AND ANSWERS 2023 GRADED A+. Part 1 of 6 - Calculations of Probabilities Questions 1.0/ 3.0 Points Question 1 of 20 Find the area under the standard normal distribution to the left of z = -1.35. Round answer to 4 decimal places. 0.0/ 1.0 Points Answer: 0.9114 Answer Key: 0.0885 Feedback: In Excel, =NORM.S.DIST(-1.35,TRUE) Question 2 of 20 Find P(Z ≤ 2.76). Round answer to 4 decimal places. Answer: 0.9971 1.0/ 1.0 Points Answer Key: 0.9971 Feed...

MATH302 Week 1 TEST COMPLETE QUESTIONS AND ANSWERS 2023 GRADED A+. Question number 1 A Lake Tahoe Community College instructor is interested in the mean number of days Lake Tahoe Community College math students are absent from class during a quarter. X = number of days a Lake Tahoe Community College math student is absent The instructor’s sample produces a mean number of days absent of 3.5 days. This value is an example of a: variable statistic data parameter Correct Question nu...

MATH302 WEEK 7 TEST Part 1 of 7 - Linear Regression and Correlation; Outliers and Values of Correlation 2.0/ 2.0 Points Question 1 of 20 1.0/ 1.0 Points The least squares regression line for a data set is yˆ=5+0.3x and the standard deviation of the residuals is 0.52. Does a case with the values x = -1.59, y = 5.78 qualify as an outlier?  A. Cannot be determined with the given information  B. No  C. Yes Answer Key: C Feedback: Plug in -1.59 for x. y = 5 + .3*-1.59 ...