Homework Answers
A
A shows lesser variation and is a flatter line. This shows lesser degree of variation and hence must be using lower values of alpha and beta.
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The following graph shows two forecasts produced from two different values of alpha and beta for...
Prof. Alpha Prof. Beta Two different professors teach an introductory statistics course. The table shows the...
Prof. Alpha Prof. Beta Two different professors teach an introductory statistics course. The table shows the distribution of final grades they reported. We wonder whether one of these professors is an "easier" grader. 00 W-0 OB. Goodness-of-fit O C. Independence b) Write the appropriate hypotheses. Choose the correct answer below. O A. Ho: The distribution of grades is the same for the two professors. Ha: The grades are higher for the first professor. O B. Ho: The distribution of grades...
I. Use the DNA sequence below, which encodes a prokaryotic gene to answer the following questions....
I. Use the DNA sequence below, which encodes a prokaryotic gene to answer the following questions. 11 21 31 41 51 71 81 61 91 CGTAATTGAG GAGGTAGTTG ACGTATGAAT AGTTAACGTA CGGGGGGGAA 101 111 121 131 141 ACCCCCCCTT TTTTTTTTTC GAGCAATAAA AGGGTTACAG ATTGCATGCT a) Write down the corresponding sequences, find them in the sequence above and label them: -35 Consensus sequence: _(label as -35) -10 Consensus sequence (Pribnow box): _ __ (label as Pribnow) Shine-Dalgarno sequence in corresponding mRNA: __ (label as SD)...
10.0 Points Graph one shows a number of observations of the graph to the top right....
10.0 Points Graph one shows a number of observations of the graph to the top right. Graph two has a number of observations that would be tightly packed around a trend Sne sloping from the top left to the bottom right. Which of the following statemens) are tue? that are very spread oul bui generally trending from the botom A. Graph one should have a higher r-squared value B. Graph two should have a higher r-squared value C. Graph one...
6.Use Exponential smoothing forecasts with alpha of 0.1, 0.2, ..., 0.9 to predict March 2019 demand....
6.Use Exponential smoothing forecasts with alpha of 0.1, 0.2, ..., 0.9 to predict March 2019 demand. Identify the value of alpha that results in the lowest MAD. 7.Find the monthly seasonal indices for the demand values using Simple Average (SA) method. Find the de-seasonalized demand values by dividing monthly demand by corresponding seasonal indices. 8.Use regression to perform trend analysis on the de-seasonalized demand values. Is trend analysis suitable for this data? Find MAD and explain the Excel Regression output...
5 pts Question 23 Life on Earth uses 3 nucleotide long code words, with 4 letters...
5 pts Question 23 Life on Earth uses 3 nucleotide long code words, with 4 letters in the alphabet to encode 20 amino acids. DNA on the planet Arth only contains A, G and C. In addition, proteins on Arth are made from 26 different amino acids. What is the minimum number of nucleotides in a codon needed to code for life on Arth? Hint: In humans a 3-letter code can represent 4 x 4 x4 = 64 amino acids...
Investment companies and performance evaluation 1) Consider two different hedge funds with the following data related to performance: Hedge fund Alpha Beta Fund A 5% 1.6 Fund B 3% 0.8 Assuming tha...
Investment companies and performance evaluation 1) Consider two different hedge funds with the following data related to performance: Hedge fund Alpha Beta Fund A 5% 1.6 Fund B 3% 0.8 Assuming that beta is consistent with the type of investing we expected in both cases, which fund performed better. A. Fund A, because it had the higher return B. Fund A, because it had the higher alpha C. Fund B, because its alpha is more impressive than Fund A when...
I I Order ld:95 Where's the Money-Wikipedia Aid Question 17 Which Linux command produced the following output? here are 29 section headers, starting at offset 0x 11478 Section Headers Offset...
I I Order ld:95 Where's the Money-Wikipedia Aid Question 17 Which Linux command produced the following output? here are 29 section headers, starting at offset 0x 11478 Section Headers Offset Address Flags Link Info Align Type Entsize ULL INr1 Nane size PROGBITS 1) interp 000000000000001c 21 note.ABI-tag NOTE c o 0000000000400254 00000254 0000000000400274 00000274 0000000000400298 00000298 2e0 000002e0 I 31 .note.gnu.build-1 NOTE 41gnu.hash 5] .dynsy 61 .dynstr 1 71 .gnu.version GNU HASH DYNSYM STRTAB VERSYM 0000000000000044 0 18 A 0000000000000870...
Forecasting method
Use the moving average method to forecast period 105.Use the exponential smoothing method to forecast period 105.Use the time-series decomposition method to forecast period 105.Comparing the three methods, which one fits this situation best?The larger the parameter (n) is set, the more historical data are taken into account by the moving average.You can choose different parameter (n) to extrapolate to compare the prediction effect.In general, the parameter (n) should not be taken too large.Moving average.153025703560453055106560761085609580106101165012700136701470015760167301776018820197802090021840227702382024800257602676027770287902976030740317203267033690344703567036690376203865039610406204164042590436104460045630466004763048640496105059051610526305366054640558105679057820586505971060700616706269063730647306576066790678106887069890708707189072880739307498075900768607789078880798708084081860829108387084860858408654087780887508978090760917109273093750947509571096750977209877099740100750101760102780103800104850105Exponential smoothingsame153025703560453055106560761085609580106101165012700136701470015760167301776018820197802090021840227702382024800257602676027770287902976030740317203267033690344703567036690376203865039610406204164042590436104460045630466004763048640496105059051610526305366054640558105679057820586505971060700616706269063730647306576066790678106887069890708707189072880739307498075900768607789078880798708084081860829108387084860858408654087780887508978090760917109273093750947509571096750977209877099740100750101760102780103800104850105Time-series decomposition153025703560453055106560761085609580106101165012700136701470015760167301776018820197802090021840227702382024800257602676027770287902976030740317203267033690344703567036690376203865039610406204164042590436104460045630466004763048640496105059051610526305366054640558105679057820586505971060700616706269063730647306576066790678106887069890708707189072880739307498075900768607789078880798708084081860829108387084860858408654087780887508978090760917109273093750947509571096750977209877099740100750101760102780103800104850105
Answer the following questions regarding this problem. Don't use $ in the answers. Jay Company purchased...
Answer the following questions regarding this problem. Don't use $ in the answers. Jay Company purchased a delivery truck for $67,000 on January 1, 2018. The truck has an expected salvage value of $3,000 and is expected to be driven 110,000 miles over its estimated useful life of 8 years. Actual miles driven were 14,000 in 2018 and 12,000 in 2019 and 4,000 in 2020. The delivery truck is then sold on July 1, 2020 for $50,000 cash. Flag this...
Student stress at final exam time comes partly from the uncertainty of grades and the consequence...
Student stress at final exam time comes partly from the
uncertainty of grades and the consequences of those grades. Can
knowledge of a midterm grade be used to predict a final exam grade?
A random sample of 200 BCOM students from recent years was taken
and their percentage grades on assignments, midterm exam, and final
exam were recorded. Let’s examine the ability of midterm and
assignment grades to predict final exam grades.
The data are shown here:
Assignment
Midterm
FinalExam...
Prof. Alpha Prof. Beta Two different professors teach an introductory statistics course. The table shows the distribution of final grades they reported. We wonder whether one of these professors is an "easier" grader. 00 W-0 OB. Goodness-of-fit O C. Independence b) Write the appropriate hypotheses. Choose the correct answer below. O A. Ho: The distribution of grades is the same for the two professors. Ha: The grades are higher for the first professor. O B. Ho: The distribution of grades...
I. Use the DNA sequence below, which encodes a prokaryotic gene to answer the following questions. 11 21 31 41 51 71 81 61 91 CGTAATTGAG GAGGTAGTTG ACGTATGAAT AGTTAACGTA CGGGGGGGAA 101 111 121 131 141 ACCCCCCCTT TTTTTTTTTC GAGCAATAAA AGGGTTACAG ATTGCATGCT a) Write down the corresponding sequences, find them in the sequence above and label them: -35 Consensus sequence: _(label as -35) -10 Consensus sequence (Pribnow box): _ __ (label as Pribnow) Shine-Dalgarno sequence in corresponding mRNA: __ (label as SD)...
10.0 Points Graph one shows a number of observations of the graph to the top right. Graph two has a number of observations that would be tightly packed around a trend Sne sloping from the top left to the bottom right. Which of the following statemens) are tue? that are very spread oul bui generally trending from the botom A. Graph one should have a higher r-squared value B. Graph two should have a higher r-squared value C. Graph one...
5 pts Question 23 Life on Earth uses 3 nucleotide long code words, with 4 letters in the alphabet to encode 20 amino acids. DNA on the planet Arth only contains A, G and C. In addition, proteins on Arth are made from 26 different amino acids. What is the minimum number of nucleotides in a codon needed to code for life on Arth? Hint: In humans a 3-letter code can represent 4 x 4 x4 = 64 amino acids...
I I Order ld:95 Where's the Money-Wikipedia Aid Question 17 Which Linux command produced the following output? here are 29 section headers, starting at offset 0x 11478 Section Headers Offset Address Flags Link Info Align Type Entsize ULL INr1 Nane size PROGBITS 1) interp 000000000000001c 21 note.ABI-tag NOTE c o 0000000000400254 00000254 0000000000400274 00000274 0000000000400298 00000298 2e0 000002e0 I 31 .note.gnu.build-1 NOTE 41gnu.hash 5] .dynsy 61 .dynstr 1 71 .gnu.version GNU HASH DYNSYM STRTAB VERSYM 0000000000000044 0 18 A 0000000000000870...
Use the moving average method to forecast period 105.Use the exponential smoothing method to forecast period 105.Use the time-series decomposition method to forecast period 105.Comparing the three methods, which one fits this situation best?The larger the parameter (n) is set, the more historical data are taken into account by the moving average.You can choose different parameter (n) to extrapolate to compare the prediction effect.In general, the parameter (n) should not be taken too large.Moving average.153025703560453055106560761085609580106101165012700136701470015760167301776018820197802090021840227702382024800257602676027770287902976030740317203267033690344703567036690376203865039610406204164042590436104460045630466004763048640496105059051610526305366054640558105679057820586505971060700616706269063730647306576066790678106887069890708707189072880739307498075900768607789078880798708084081860829108387084860858408654087780887508978090760917109273093750947509571096750977209877099740100750101760102780103800104850105Exponential smoothingsame153025703560453055106560761085609580106101165012700136701470015760167301776018820197802090021840227702382024800257602676027770287902976030740317203267033690344703567036690376203865039610406204164042590436104460045630466004763048640496105059051610526305366054640558105679057820586505971060700616706269063730647306576066790678106887069890708707189072880739307498075900768607789078880798708084081860829108387084860858408654087780887508978090760917109273093750947509571096750977209877099740100750101760102780103800104850105Time-series decomposition153025703560453055106560761085609580106101165012700136701470015760167301776018820197802090021840227702382024800257602676027770287902976030740317203267033690344703567036690376203865039610406204164042590436104460045630466004763048640496105059051610526305366054640558105679057820586505971060700616706269063730647306576066790678106887069890708707189072880739307498075900768607789078880798708084081860829108387084860858408654087780887508978090760917109273093750947509571096750977209877099740100750101760102780103800104850105
Student stress at final exam time comes partly from the
uncertainty of grades and the consequences of those grades. Can
knowledge of a midterm grade be used to predict a final exam grade?
A random sample of 200 BCOM students from recent years was taken
and their percentage grades on assignments, midterm exam, and final
exam were recorded. Let’s examine the ability of midterm and
assignment grades to predict final exam grades.
The data are shown here:
Assignment
Midterm
FinalExam...
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