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Show all your work as needed for full credit (10 points each). Just writing the answers will not eam you full credit. Assume that are testing the claim that the mean age of the prison population in one city is less than 25 years. Sample data are summarized as n = 25, * = 24.4 years, and s = 9.2 years. Use a significance level of a = 0.05. Use the given information to answer the questions. 1) Calculate the test statistics, Round to 3 decimal places. (You must show how you set 1) up and calculate the test statistics. Only having calculator work will not count for the test statistics.) 4 2) rund the p-value and make a decision (reject or fail to reject the null hypotheses). Round each value to 3 decimal places. (You may use Excel or a calulator to find the p-value, but you must write what you input into Excel/calculator below) Determine whether the hypothesis test involves a sampling distribution of means that is a normal distribution, Student distribution, or neither. Choose the correct distribution that will be use to test each claim. 3) a. Claim:u= 107. Sample data: n = 17.x = 101, s= 15.1. The sample data appear to come 3) from a normally distributed population with unknown u ando. n= b. Claim: u = 981. Sample data: n = 23, 5 =912, s= 30. The sample data appear to come from a normally distributed population with o - 30 Assume that you want to test the claim that the paired sample data (matched pains) come from a population for which the mean difference is d - Compute the value of the test statistic Round the test statistic to four decimal places. 4) 28 31 20 25 26 27 33 35 y 26 27 26 25 29 32 33 34 Solve the problem. 5) 5) A newspaper article about the results of a poll states in theory, the results of such a poll. in 99 cases out of 100 should differ by no more than 5 percentage points in either direction from what would have been obtained by interviewing all voters in the United States." Find the sample size suggested by this statement Shade and label the missing parts in graph for a 99% confidence interval. (You may use Excel or a calculator to find the t-score. Round the Z-score to two decimal places) Area to the left Area in the middle = Area to the right Z= b. The sample site is

vessel Five Liter ga minute of hand an (stron 1) at 256 and 200 mmhg and with a dw.zont pt. 2014. enter a mixing , 2 that consist of is litus per minute of hand and at 25 and 180 murity, with a relude hombly of ss. In addition 25 m/min of wonder (stum 3 of 250 and 760 morty is adaid to the vessel. The restog mistre Stream & leaves at 60% and 760 mm Hg. The mention o Humid Ant Mixing Lo Humid Air Hondair @ Water a. What is the mole faction of air and water in stream Streamy? 16. The dewi punt Augustkie of the testing arc (Shemen y)? c. Assume that the exiting air (streamy) is ar cisternen y) is loha mully compressed to 4,500 month. The amount of water condend in the press is (molim d Asume now that the extino ar estream 4) is cooled ischiacally that 50% of the original water is condenned The final temperature of the exiting air 4 15 ashion Five Liten ao mnite of hundas (stran 1) at 256 and ( 1900 wonite and with a dew point of the enter a mixin shown in Figon 1. That strom is compared with dream 2 that conut of is Lites for mode of hard or at 25°C ano 180 mootto with a relative humidig of es. Jon addition, 125 ml/min of water (etrom 3 at 25% and 760 ming 4 ( is adoled to the vessel. The resting phone catream & leaves at 60% and 760 The molto 0 Humid Air Mixing ? Humid Air ? Water Ro what is the mole fraction of air and water in shean stream 4? b. The ows port Ampuede of the desting an (sterom 9)? c. Assume that the exiting air (stran 1 is air Cubaon ) is the only comprend to 4,50 minut. The around of under sonbrid wondered the powes is only) d. Anvar now that the exiting an estream is cooked ochrally that 50% of the origral vinter is condemned The final temperation of the exiting our

3. Within the framework of the Mundell Flemming Model,

a) In an economy where there is partial movement of capital, the uncertainty increases, and the interest on external debt rises in the free exchange rate regime. In this case, in which direction is the demand-side balance of the economy moving? (The LM curve is steeper than the BOP curve). How do the exchange rate, money supply, national income, and interest change?

b) How does the Central Bank's devaluation affect the demand-side balance of the economy under the fixed exchange rate regime in an economy where capital is fully mobile? How do exchange rates, money supply, national income, and interest rates change?

 

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How long it takes paint to dry can have an impact on the production capacity of a business. In May 2018, Deal's Auto Body & Paint in Prescott, Arizona, invested in a paint-drying robot to speed up its process (The Daily Courier website, https://www.dcourier.com/photos/2018/may/26/984960336/). An interesting question is, "Do all paint-drying robots have the same drying time? To test this, suppose we sample five drying times for each of different brands of paint-drying robots. The time in minutes until the paint was dry enough for a second coat to be applied was recorded. The following data were obtained. Click on the datafile logo to reference the data, DATA file Robot 1 Robot 2 Robot 3 Robot 4 128 144 133 150 137 133 143 142 135 142 137 135 140 153 124 146 136 141 130 131 At the a=0.05 level of significance, test to see whether the mean drying time is the same for each brand of robot. Compute the values identified below (to 2 decimals, il necessary), Sum of Squares, Treatment Sum of Squares, Error Mean Squares, Treatment Mean Squares, Error Calculate the value of the test statistic (to 2 decimals), The p value is - Select your answer - What is your conclusion? Select your answer

QUESTION 3 Write a C++ program to find if a number is negative, positive or zero. C++ Link:

Question 17 In amplitude modulation, bandwidth is.... the audio signal frequency A Twice B Three times Four times D) None of the above Question 18 Which of the following schemes consumes more power. A Unipolar NRZ B Polar NRZ C Differential Manchester D) AMI Question 19 Increasing the frequency of an analog signal leads to A An increase in the wavelength of the signal B An decrease in the wavelength of the signal A decrease in the number of cycles per second D An increase in the period of each cycle of the signal

QUESTION 17 Which of the following regulators do not impact on the audit process? O a. Auditing Professional and Ethical Standards Board (APESB). O b. Institute of Public Accountants (IPA). OC. Australian Securities and Investments Commission (ASIC), O d. all of the above have an impact on the audit process.

Analyze the frame given in Fig. 2 using any suitable method. Take EI constant.

 

2. Analyze the frame given in Fig. 2 using any suitable method. Take El constant. 2 kN/m 3 kN 1.51 5 m 21 21 6 m Fig.: 2

= 11.1 mlday The Figure below shows a cross section of a dam which can be idealized as an unconfined aquifer of hydraulic conductivity K. In order to prevent instability of the wall, the maximum Darcy's velocity (specific discharge) that should occur anywhere within the dam is specified as Vmax. Show that the minimum width W min needed to satisfy this requirement can be expressed as: 2 K W min = (ho? 20 maxho -hy?) he Ahw W 91

1. Find the radius and interval of convergence of the series - 2n+1(4x - 8)" n2 n=1