Margaret and her sister support their mother and together provide 85 percent of their mother's support. If Margaret provides 40 percent of her mother's support: a. Neither Margaret nor her sister may claim their mother as a dependent. b. Margaret and her sister may split the dependent status of their mother. c. Margaret may claim her mother as a dependent if her sister agrees in a multiple support agreement. d. Her sister is the only one who can claim their mother as a dependent. e. Both Margaret and her sister may claim their mother as a dependent.

Let the sample size of leg strengths be 7 and the sample mean and sample standard deviation be 945 watts and 48 watts, respectively. (a) is there evidence that leg strength exceeds 900 watts at significance level 0.05? find the p-value.there is , evidence that the leg strength exceeds 900 watts at ? -0.05. 0.001 < p-value 0.005 0.05 p-value < 0.10 0.10 p-value < 0.25 o 0.010 p-value 0.025 (b) compute the power of the test if the true strength is 915 watts. (c) what sample size would be required to detect a true mean of 915 watts if the power of the test should be at least 0.9? n= exact number, no tolerance