The National Sleep Foundation used a survey to determine whether hours of sleeping per night are independent of age (Newsweek, January 19, 2004). The following show the hours of sleep on weeknights for a sample of individuals age 49 and younger and for a sample of individuals age 50 and older. Hours of Sleep Age Fewer than 6 6 to 6.9 7 to 7.9 8 or more Total 49 or younger 37 58 71 74 240 50 or older 34 60 79 87 260

a.Conduct a test of independence to determine whether the hours of sleep on weeknights are independent of age. Use = .05.

Compute the value of the 2 test statistic (to 2 decimals).

b.Using the total sample of 500, estimate the percentage of people who sleep less than 6, 6 to 6.9, 7 to 7.9, and 8 or more hours on weeknights (to 1 decimal).

Less than 6 hours %

6 to 6.9 hours %

7 to 7.9 hours %

8 or more hours %

Question 1b The economy of Ghana is made up of three sectors namely: Agriculture, Industry and Services. These three sectors contribute to the national output. For decades prior to the 2000s, the Agricultural sector contributed the most to the national output. Sadly, in recent years however, the sector has been the least contributor to national output. Trends in production of major food crops such as maize, rice and sorghum show that on-farm productivity has stagnated and the exploitable difference between the actual and the potential output of most of the crops (yield gap) has widened. Low and inadequate levels of usage of productivity enhancing technologies such as quality seeds of improved varieties and fertilizer, inadequate extension services and weak market linkages contribute to the poor agricultural performance. It was against this background that the NPP-led government implemented one of her flagship programmes “Planting for Food and Jobs”. The programme is primarily aimed at making subsidised improved seeds and fertilizers available to farmers, sensitising farmers on the adoption of good agronomic practices and the marketing of agricultural crops over an electronic agriculture platform. This programme is ultimately aimed at boosting crop yield. In addition, suppose that agricultural products in Ghana are normal goods and due to the implementation of good economic policies and the curtailing of corruption, the economy of Ghana grows significantly leading to appreciable increases in the general consumers’ income levels. With the aid of a diagram, explain the effect of these events on the equilibrium price and quantity of agricultural crops assuming that these events have equal impact.     

A homogeneous sphere S, a uniform cylinder C, and a thin pipe P are in contact when they are released from rest on the incline shown. Knowing that all three objects roll without slipping, determine, after 9s of motion, if theta=27 degrees, Find

1. acceleration of sphere down the incline (m/s^2)
2. acceleration of pipe down the incline (m/s^2)
3. The distance between the centers of the cylinder and the sphere (m)
4. Acceleration of cylinder down the incline (m/s^2)
5. the distance between the centers of the pipe and the cylinder (m)

Think of three goods for which the demand is inelastic with respect to price. Do these goods ever go on sale? Does understanding the relationship between elasticity and total revenue help you understand why some goods go on sale and others don’t? Share your thoughts.

Chapter 7 in Horngren's cost accounting 16th edition textbook

In summarizing its painstaking analysis of revenue and direct cost variances, the textbook refers to three levels of analysis. What specifics are revealed with regard to the difference between a master budget and actual results at each level?

How will understanding finance and making correct financial decisions contribute to your general quality of life? What are parallels between how a successful business manages its money and how you manage yours?

Malaysia is one of the leading providers of Islamic banking products globally and its market share is increasing each year. Islamic Banking products have been used by both Muslim and non-Muslim customers. Discuss briefly two similarities and three differences between Islamic and Conventional Banking.

please answer with explanation within 1 hour     

The rental process for these cues is exhaustive and takes 75 minutes for each application. There are three employees that conduct these interviews, and on average, it is one hour between customer arrivals. What is the arrival rate? What is the service rate? On average, how many hours do customers wait to begin the application process? What is the probability all servers are idle?

The International League of Triple-A minor league baseball consists of 14 teams organized into three divisions: North, South, and West. Suppose the following data show the average attendance for the 14 teams in the International League. Also shown are the teams' records; W denotes the number of games won, L denotes the number of games lost, and PCT is the proportion of games played that were won.

(a)

Use α = 0.05 to test for any difference in the mean attendance for the three divisions.

State the null and alternative hypotheses.

H₀: μ_N = μ_S = μ_W
H_a: Not all the population means are equal.

Find the value of the test statistic. (Round your answer to two decimal places.)

Find the p-value. (Round your answer to three decimal places.)

p-value =

State your conclusion.

Reject H₀. There is not sufficient evidence to conclude that the mean attendance values are not equal for the three divisions.

Do not reject H₀. There is sufficient evidence to conclude that the mean attendance values are not equal for the three divisions.    

Reject H₀. There is sufficient evidence to conclude that the mean attendance values are not equal for the three divisions.

Do not reject H₀. There is not sufficient evidence to conclude that the mean attendance values are not equal for the three divisions.

(b)

Use Fisher's LSD procedure to determine where the differences occur. Use α = 0.05.

Find the value of LSD for each pair of divisions. (Round your answers to two decimal places.)

North and South LSD = North and West LSD = South and West LSD =

Find the pairwise absolute difference between sample attendance means for each pair of divisions. (Round your answers to the nearest integer.)

|x_N − x_{S| =}

|x_N − x_{W| =}

|x_S − x_{W| =}

Which attendance means differ significantly? (Select all that apply.)

There is a significant difference in mean attendance between the North division and the South division. There is a significant difference in mean attendance between the North division and the West division. There is a significant difference in mean attendance between the South division and the West division. There are no significant differences