You measure 43 randomly selected textbooks' weights, and find they have a mean weight of 61 ounces. Assume the population standard deviation is 5.2 ounces. Based on this, construct a 99% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places

6(-3w+1/3)

Solue for 4x²-16 z O

2 В 0 -4 1 -4 4 3BT

-1 2 5 2 7 -5 Let B = and C = 2 5 3 2 3 5 Find -4B+ 5C. >

1 2 3 4 -2

12r-8-12

Number 3 Number 11

(4x + 4, y) 2. 11 1 1 2. 2. 2. 2. 2. 111

A random sample of n = 1,200 observations from a binomial population produced x = 581 successes. You wish to show that p differs from 0.5. In USE SALT Calculate the appropriate test statistic. (Round your answer to two decimal places.) %3= Calculate the p-value. (Round your answer to four decimal places.) p-value = Do the conclusions based on a fixed rejection region of Iz| > 1.96 agree with those found using the p-value approach at a = 0.05? O Yes, both approaches produce the same conclusion. O No, the p-value approach rejects the null hypothesis when the fixed rejection region approach fails to reject the null hypothesis. O No, the fixed rejection region approach rejects the null hypothesis when the p-value approach fails to reject the null hypothesis. Should they? O Yes O No You may need to use the appropriate appendix table to answer this question.