What would a researcher say about a coefficient of determination equal to -.48 ? A The \( 48 \% \) of variance in my dependent variable can be explained by variance in the independent variable (B) An error is made (C) The relationship is not statistically significant due to the low value of the coefficient. (D) Inconclusive results. Post hoc tests are needed.

MAT 141 Cumulative Final Exam - Chapters \( 1-12 \) Score: \( 26.3 / 111 \) Answered: \( 16 / 75 \) The city of Raleigh has 11,900 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 250 randomly selected registered voters was conducted. 146 said they'd vote for Brown, 87 said they'd vote for Feliz, and 17 were undecided. Use this information from the sample to complete the following statements about the population of all registered voters in Raleigh. Round your answers to the nearest person. Based on this sample, we could expect \( \square \) of the 11,900 registered voters to vote for Brown. Based on this sample, we could expect \( \square \) of the 11,900 registered voters to vote for Feliz. Based on this sample, \( \square 11,900 \) registered voters are still undecided.

Sea \( X \) una variable aleatoria con \( N(10,5) \), para que valor de \( x \) se cumple la siguiente probabilidad. \( P(X<x)=0.975 \)

Question 59 The city of Raleigh has 11,400 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 550 randomly selected registered voters was conducted. 247 said they'd vote for Brown, 284 said they'd vote for Feliz, and 19 were undecided. Use this information from the sample to complete the following statements about the population of all registered voters in Raleigh. Round your answers to the nearest person. Based on this sample, we could expect Based on this sample, we could expect Based on this sample,

La duración en horas de cierta marca de bombillos se ajusta a una distribución N(48000, 3000), La duraciōn de los bombillos en un intervalo de confianza del \( 80 \% \) está:

men are randomly selected and tested. Among the men, 563 have color blindness, and among the wo lindness than women at an \( \alpha=0.05 \) level of significance. Round all values to at least 4 decimal places.