31. A publishing company claims that the average length of its books is more than 1000 pages. In a study, 20 books are randomly selected. The average length within the sample is 1085 pages, and the standard deviation with the sample is 120 pages. Assume that the book lengths in pages are approximately normally distributed. Use a significance level of 0.05 to test the publishing company's claim. a) Ho: Ha:

A: GivenMean(μ)=58650standard deviation(s)=1890sample size(n)=40

A: Given : ∫132x5dx

A:

A: For similar triangle, ratio of corresponding sides are equal

A: Here we have to find the integral value.

A: Total female = 133+43 = 178 Total "did not graduate" = 55+43 = 98 Grand total= (126+55+133+43)  =…

A: The altitude of a triangle is also called the height of the triangle. We need to determine m∠5.

A:

A: The quadratic function has vertex (-2,3) and a point on graph 1, 12

A: Given: y=ex-12 we know that am-n=aman

A:

A:

A: To determine: 7 to the power of 18

A:

A:

A: Given information 95% confidence interval = (128 minutes, 147 minutes)

A: We need to evaluate integral.

A: Given Information: BMI of a five year old girl is 15.  That is, the hypothesized value of population…

A: Given,  Total charts requested = 750 Compliance rate = 95%

A:

A: