Question Solved1 Answer Consider the data sets given in the histograms below. Assume the scale on the horizontal axis is the same in each histogram. Rank the data sets in order from the smallest to the largest standard deviation. Histogram 1 Histogram 2 Histogram 3 Histogram 1 [Choose) > Histogram 2 [ Choose < Histogram 3 [Choose) >

5.32 Rental car fleet evaluation. National Car Rental Systems, Inc., commissioned the U.S. Automobile Club (USAC) to conduct a survey of the general condition of the cars rented to the public by Hertz, Avis, National, and Budget Rent-a-Car. USAC officials evaluate each company's cars using a demerit point system. Each car starts with a perfect score of 0 points and incurs demerit points for each discrepancy noted by the inspectors. One measure of the overall condition of a company's cars is the mean of all scores received by the company (.e., the company's fleet mean score). To estimate the fleet mean score of each rental car company, 10 major airports were randomly selected, and 10 cars from each company were randomly rented for inspection from each airport by USAC Officials (ie., a sample of size n = 100 cars from each company's fleet was drawn and inspected). * Information by personal communication with Rajiv Tandon, corporate vice president and general manager of the Car Rental Division, National Car Rental Systems, Inc., Minneapolis, Minnesota. a. Describe the sampling distribution of 2, the mean score of a sample of n - 100 rental cars. b. Interpret the mean of x in the context of this problem. c. Assume j = 30 and a = 60 for one rental car company. For this company, find P(x > 45). d. Refer to part c. The company claims that their true fleet mean score "couldn't possibly be as high as 30. The sample mean score tabulated by USAC for this company was 45. Does this result tend to support or refute the claim? Explain.

Systolic blood pressure levels above 120 mm Hg are considered to be high. For the 100 systolic blood pressure levels listed in the companying data the 12046000 mm Hg and the standard deviation is 14.44699 mm Hg Assume that a simple random sample has been selected. Use aos scancer that the sample is from a population with a mean greater than 120 mm Hg Click Systolic blood pressure levels above 120 mm Hg are considered to be high. For the 100 systolic blood pressure levels listed in the companying data the 12046000 mm Hg and the standard deviation is 14.44699 mm Hg Assume that a simple random sample has been selected. Use aos scancer that the sample is from a population with a mean greater than 120 mm Hg Click the icon to view the data set of systolic blood pressure levels Identity the null and alternative hypotheses. Ho H: (Type Integers or decimals. Do not round) Identify the test statistic (Round to two decimal places as needed.) Identify the P-value (Round to three decimal places as needed.) State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original.com the null hypothesis. There V sufficient evidence at the 0.05 significance level to with a mean systolic blood pressure level greater than 120 mm Hg stolic Blood Pressure Levels Body and exam measurements are from 100 subjects. SYSTOLIC systed pressure (mm Hg). SYSTOLIC 126 128 134 102 112 136 120 142 146 96 112 142 110 112 112 104 118 144 108 122 134 114 stolic Blood Pressure Levels 108 512 112 114 118 124 110 122 102 108 120 34 112 122 116 Systolic Blood Pressure Levels 128 138 94 112 140 108 112 120 112 122 132 92 114 122 106 106 118 114 132 136 106 120 120 96 114 120 122 ystolic Blood Pressure Levels 04 190 114 120 110 118 138 106 124 Systolic Blood Pressure Levels 120 122 125 104 125 130 92 142 166 98 110 126 100 136 156 114 128 132 110 118 138 106 124 136 128 SYSTOLIC

Problem 4a: Write a recursive C++ program to solve the following problem : P(1) = 3 P(2) = 4 P(n) =P(n-1)+P(n-2) for n>2 To test – output for P(4)=11 P(6) = 29 and P(7) =47 Hint: main shall call a function int par(int n) that returns 3 if n=1, it returns 4 if n = 2, and it returns par(n-1) + par(n-2) if n>2. Sample Output (Your name will replace mine & yours will be P(5)) John shows P( 7) has 47 units b: Draw a call tree for P(5). This should look similar to Figure 2.30 in the textbook. Note: the numbers just above the ovals are the return values. You may hand draw and scan, but you can complete in Google Suites or an App of your choice.

(50%) Proble 1: Standing at the base of one of the cliffs of Mt Arapiles in Victoria, Australia, a hiker hears a rock break loose from a height of 105 m. He can't see the rock right away but then does, 1 2 s later 50% Part (a) How far above the ground in meters is the rock when the hiker starts to see it? Neglect the time for the sound to reach the E Grade (50%) Proble 1: Standing at the base of one of the cliffs of Mt Arapiles in Victoria, Australia, a hiker hears a rock break loose from a height of 105 m. He can't see the rock right away but then does, 1 2 s later 50% Part (a) How far above the ground in meters is the rock when the hiker starts to see it? Neglect the time for the sound to reach the E Grade Summar Deductions Potential 1 ino cotan) asin ac Submbsion Atmempts remainin Glo per anempt) atar detailed vien cosho tanh() Degrees Radians l -1. Cotanho.」 Submit Hnt Mintsdeduction per ht Hints remaig Feedback: iu deduction per feedback. How much time in seconds after he notices the alling rock dees he have to move before the rock hits h35 head? Ignore the 0% Part 5 height of the hiker

Q. 1. Accuracy of Dual slope ADC is not affected by the precision of: A) Integrator capacitor value. B) Input Integrating time. C) Total conversion time. D) Reference voltage value. E) \( \mathrm{A} \) and \( \mathrm{D} \). Q2 Silicon has a band gap of \( 1.1 \mathrm{eV} \). Find number of needed photons at the maximum wavelength to have \( 5 \mathrm{~J} \) Q. 1. Accuracy of Dual slope ADC is not affected by the precision of: A) Integrator capacitor value. B) Input Integrating time. C) Total conversion time. D) Reference voltage value. E) \( \mathrm{A} \) and \( \mathrm{D} \). Q2 Silicon has a band gap of \( 1.1 \mathrm{eV} \). Find number of needed photons at the maximum wavelength to have \( 5 \mathrm{~J} \) of energy. Note that \( 1 \mathrm{ev}=1.6 \times 10^{-19} \mathrm{~J} \), Planck's constant \( h=6.63 \times 10^{-34} \mathrm{~J} \).s, speed of light \( c=3 \times 10^{5} \mathrm{~m} / \mathrm{s} \). Number of photons is: A) \( 19.05 \times 10^{18} \) B) \( 8.98 \times 10^{18} \) C) \( 6.524 \times 10^{18} \) D) \( 15.801 \times 10^{\mathrm{tk}} \) E) \( 28.41 \times 10^{18} \) Q3 For the Maxwell bridge shown in Figure Q3, balance is achieved when \( R 1=5 \mathrm{~K} \Omega \). The resister R4, is equal to: A) \( 600 \Omega \) B) \( 2000 \Omega \) C) \( 100 \Omega \) D) \( 300 \Omega \) E) \( 400 \Omega \) Q4 For Q3, what is true of the following about balancing this circuit: A) Adjusting R1 affects inductive balance directly. B) Balance will be reached after a few adjustments. C) There will have balance convergence problems. D) The circuit has impractical large value of \( \mathrm{R} 1 \). E) \( \mathrm{A} \) and \( \mathrm{B} \). Q5 An electronic ac voltmeter that uses amplification before rectification must have: A) High open loop gain. B) Large amount of negative feedback. C) Zero drift characteristics D) B and C E) \( \mathrm{B} \) and \( \mathrm{A} \) Q6 The sawtooth waveform signal shown in Figure Q6 is used to calibrate an average responding ac voltmeter. Find the error in the meter indication when used to measure the rms value of a square wave: A) \( 14.9 \% \) B) \( 13.4 \% \) C) \( 7.75 \% \) D) \( 3.875 \% \) E) \( 15.5 \% \) Figure Q6 Q7 In the half wave rectifier shown in of \( 10 \Omega \) and are assumed to have an infinite \( Q 7, D 1 \) and \( D 2 \) have an average forward resistance value of Rs (in \( \Omega \) ) for \( 10 \mathrm{~V} \) rms ac range: A) 1211 B) 1473 C) 2288 D) 2957 E) 2091 F) None Q8. A photoconductive cell that has a resistance changes from \( 2.5 \mathrm{k} \) to \( 1 \mathrm{k} \) when exposed to light is used in the circuit of Fig.4. If the device time constant is \( \tau=100 \mathrm{~ms} \), then the value of \( \mathrm{V}_{\text {aut }} \) after 2 ms from exposing the cell to light will be : A) \( 85.2 \mathrm{mV} \) B) \( 111 \mathrm{mV} \) C) \( 76.9 \mathrm{mV} \) D) \( 162 \mathrm{mV} \) E) \( 190 \mathrm{mV} \) F) None Q. 9. The ADC of data acquisition systems is typically of the type: A) Resistive ladder network. B) Successive approximation. C) Dual slope. D) Ramp. E) \( \mathrm{D} \) and \( \mathrm{A} \).

A box weighing 100 N made of Copper is pushed on a horizontal surface made of steel. Using the information given in the Table shown bellow, the minimum force needed to start the box skidding on this surface is Coefficients of Friction a) 36 N c) 53 N e) +5 N b) +7 N d) 7+ N Steel steel Shuninunon steel Copper om te Balkon concrete mwand 0.37 03.17 0. 1. 11. We won wetu W dni Icon Select one