1.which of the following statements is true regarding a simple linear regression model?

a) the proportion of variation explain is the correlation coefficient

b) SSR must be greater than SSE if the coefficient of determination is larger than 0.5

c) the slop coefficient must have the same sign as the coefficient of determination

d) none of the above

2.which of the following is true?

a) the central limit theorem states that no more than 75% of the observations lie within 2 standard deviations of the mean

b)the central limit theorem states that the sampling distribution of the mean will be approximately normal regardless of the shape of the distribution as the sample size becomes large

c) the central limit theorem states that the standard error of the sampling distribution of the mean can be approximated by ?/? N as long as the population is symmetric

d) the population must be normal and that ? is not known for the central limit theorem to be valid

3 (see attachment)

3 . Forty shoppers were asked if they preferred the weight of a can of soup to be 6 ounces , 8 ounces , or 10 ounces Below you are given their responses 6 6 6 10 8 8 8 10 6 6 10 10 8 8 G Call 6 8 6 6 8 8 8 10 8 8 6 10 CO G 6 8 8 8 10 10 B 10 8 6Refer to the following in answering questions II to 13 In a large corporation , sixty - two percent of the employees are male . Twenty - three percent of the employees earn more than $30 .100 a year . Eighteen percent of the employees are male and earn more than $30 090 a year . Suppose that an employee is selected at random Let A be the event that the selected employee is a male and B the event that the employee earns more than $30 090 a year 11 . Given that the selected employee is a female , what is the probability that the employee will earn $30 000 or less ? 2 ) 38 17 by 0.33 ( ) 33138 do None of the above is a correct answer Thanks for rating ! You should receive an unlock shortly 2 . Which of the following statements is not true 2 ) PLASPLAID PCBIP (BLA ) b ) PLAUB )