Use the given information to find the minimum sample size required to estimate an unknown population mean.
how many weeks of data must be randomly sampled to estimate the mean weekly sales of a new line of athletic footwear? we want 99% confidence that the sample mean is within $200 of the population mean, and the population standard deviation is known to be $1,100.
a)117
b)82
c)201
d)165

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2