Find the mean of the 12 sampled ratios. =
Q: Calculate the harmonic mean of the following values: 15,250, 15.7, 157, 1.57, 105.7, 10.5, 1.06,…
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Q: Find the value of E, the margin of error.
A: sigma = 3.5 n = 10 t-critical value at 0.1 and df(9) = 1.8333 Excel formula used: "=T.INV.2T(0.1,9)"…
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Q: If the proportion of H’s is .45 out of 200 flips, what is the p-value?
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Q: Given: Test scores are 59 95 82 78 66 82 65 78 66 66 79 82 66 82. Find the PERCENTILE for the test…
A: We have to percentile for 79 ..
Q: Do these ratios form a proportion? 50 post cards : 14 souvenirs 47 post cards : 10 souvenirs
A: The first proportion is given by 50 post cards14 souvenirs......(1) The second proportion is given…
Q: When estimating the population proportion, how large a sample is needed to be 95% confident that the…
A: Given: The margin of error is equal to 0.05 Confidence Level : 95% It is asked to compute the…
Q: Calculate the Harmonic mean of the following values : 15, 250, 15.7, 157,1.57, 105.7, 10.5, 1.06,…
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Q: 3. Use the diagram to write a proportion to show that d is the geometric mean between and нь
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Q: Determine the value of x from the data given below if the ratio between the Laspeyre's index number…
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Q: A sample was done, collecting the data below. Calc 10 22 28 14
A: Given information: The sample data is provided as: x 10 22 28 14 7 It is to…
Q: Suppose r is .84, compute proportion of variation is explained?
A: From the given information, it is observed that r=0.84.
Q: For the data set with u = 275 and o = 25 What percent of the data is between... 250 and 300 300 and…
A: From the provided information, Mean (µ) = 275 Standard deviation (σ) = 25 X~N (275, 25)
Q: Find sample size CI=75% E=3.61 Stand. dev.=6.78
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Q: Identify the scale factor. 5- A A B' 5
A: We can find the scale factor as below.
Q: A programmer plans to develop a new software system. In planning for the operating system that he…
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Q: raph of the e table Using VE of 45.
A: We need to sketch of the graph of r=sin 3θ Where θ are multipliers of 45°.
Q: If you have been told that the 90% CI for the population mean is ( 20.082, 173.478) what is the…
A: The formula of the margin of error is, Where, UCL denotes the upper control limit LCL denotes the…
Q: whether the pair of ratios forms a proportion.
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Q: ize 10 has a mea rd deviation of 16 population is di la 99% confiden
A: Given Data : Sample Size, n = 10.0 Sample Mean, x̄ = 93.0 standard…
Q: For how many months is the median below 4 hours? O 2
A: From the above parallel boxplot show the average daily hours of bright sunshine in Liberia, West…
Q: Based on the histogram above, what is the frequency of the class containing the value 14
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Q: Calculate the 60th percentlle of the data shown 2.7 7.3 9.6 10.1 12.1 21
A: Given that, The number of observations is given. Percentile is given by,
Q: For paired observations, the value of the average difference is?
A: Detaild Explanation Given In Attached File kindly Refer.
Q: a. How many individuals are described in this table? b. How many females were among the respondents?…
A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…
Q: A programmer plans to develop a new software system. In planning for the operating system that he…
A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Use EXCEL…
Q: Use the data and the correct formula to find the margin of error for estimating a population…
A: Given: n = 100 x = 45 sample proportion = x / n = 45/100 =0.45 95% level of confidence Level of…
Q: Find the mean of a student's test scores if e earned 93, 91, 85, 90, and 91 points on five ests. 89…
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Q: In the formula x±zol , the subscript l 2 refers to the area in the lower tail or upper tail of the…
A: We know that the 100(1-α)% confidence interval for the population mean μ is defined as below: x̅ ±…
Q: To find the mean, you take the sum of all the survey responses and then divide by what? Additional…
A: Here given, The table shows the mean commute time (in minutes) by state for workers at least 16…
Q: d. Calculate the 20th and the 30th percentiles.
A: Percentile/centile is a partition value where the percentage of scores falls below a specified…
Q: Find the median of the data in the box plot below. pencils Number of pencils in each student's desk…
A: Given
Q: given the data on the table below, solve for the weighted mean
A: Given information: The given weighted data is as follows: Observation Class Weights 1 1-3 4 2…
Q: The percentage of men who meet the height requirement is %.
A: Men's height are normally distributed with : Mean , µ = 68.7 Standard deviation , σ = 3.4
Q: Determining the class standing (1st, 2nd, and so on) for the graduating seniors at a high school…
A: Introduction: Scales of measurement: Nominal: When the possible observations are tags or categories…
Q: give the correct answer. compute the median value. a. 45.43 b. 47.90 c. 44.50 d. 46.52
A: Given data is Classes Frequency 31 37 6 ? ? 10 45 51 15 ? ? 3 59 65 1 ? ? 0 73 79 1…
Q: a) How many guests are represented on the box and whisker plot? b) What percent of days had less…
A: here form given boxplot, using 5 point summary to answer the question minimum = 15 Q1 = 30 Q2 =…
Q: a) Find the best point estimate of the population proportion p. (Round to three decimal places as…
A: It is given that Sample size, n = 1052 Favourable cases, X = 512
Q: Q: The mean of 100 observations is 50. If one of the observations which was 50 is replaced by 150,…
A: Note: As per my policy i can answer only one question. kindly repost the another one. Given data The…
Q: A survey of 250 households showed 91 owed at least 1 blower. Find an estimate for P,( proportion of…
A: Given, Number of households (n)=250 owed at least 1 blower (x)= 91 Point estimate or sample…
Q: In the proportion a/b = b/c, the number b is known as the geometric mean for a and c. True or false?
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Q: The geometric mean is often solved by using a proportion. O True O False
A: Explained below
Q: a. How many individuals are described in this table? b. How many females were among the respondents?…
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Q: Use the data to find the value that corresponds to the 40th {2,7,8,1,5,12,9,20,20,9,30,35}…
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Q: 10 20 P(t) 50% 12% 38%
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- Is it possible to make a rough estimate using data? Is it realistic for a student to take a trip without going into serious debt?A research analyst is trying to determine whether a firm’s price-earnings (P/E) and price-sales (P/S) ratios can explain the firm’s stock performance over the past year. A P/E ratio is calculated as a firm’s share price compared to the income or profit earned by the firm per share. Generally, a high P/E ratio suggests that investors are expecting higher earnings growth in the future compared to companies with a lower P/E ratio. The P/S ratio is calculated by dividing a firm’s share price by the firm’s revenue per share for the trailing 12 months. In short, investors can use the P/S ratio to determine how much they are paying for a dollar of the firm’s sales rather than a dollar of its earnings (P/E ratio). In general, the lower the P/S ratio, the more attractive the investment. The accompanying table shows the year-to-date (YTD) returns and the P/E and P/S ratios for a portion of the 30 firms included in the Dow Jones Industrial Average.…The Capital Asset Pricing Model (CAPM) is a financial model that assumes returns on a portfolio are normally distributed. Suppose a portfolio has an average annual return of 14.7% (i.e. an average gain of 14.7%) with a standard deviation of 33%. A return of 0% means the value of the portfolio doesn’t change, a negative return means that the portfolio loses money, and a positive return means that the portfolio gains money. What percent of years does this portfolio lose money, i.e. have a return less than 0%? What is the cutoff for the highest 15% of annual returns with this portfolio?
- To the Internal Revenue Service (IRS), the reasonableness of total itemized deductions depends on the taxpayer's adjusted gross income. Large deductions, which include charity and medical deductions, are more reasonable for taxpayers with larg given level of income, the chances of an IRS audit are increased. Data (in thousands of dollars) on adjusted gross income and the average or reasonable amount of itemized deductions follow. Adjusted Gross Income Itemized Deductions ($1,000s) 22 ($1,000) 9.6 27 9.6 32 10.1 48 11.1 65 13.5 85 120 15.7 25.5 (a) Develop a scatter diagram for these data with adjusted gross income as the independent variable. 30 25 20 15 10 5 30 25 20 15 10 5+ 30 25- 20- 15- 10- .. 5- 0 20 40 60 80 100 120 140 Adjusted Gross Income ($1,000s) 0 20 40 60 80 100 120 140 0 Adjusted Gross Income ($1,000s) 20 40 60 80 100 120 140 Adjusted Gross Income ($1,000s) 30 25 20 15 10 5- 0 20 40 60 80 100 Adjusted Gross Income ($1,000s) 120 140 G (b) Use the least squares method to…To the Internal Revenue Service (IRS), the reasonableness of total itemized deductions depends on the taxpayer's adjusted gross income. Large deductions, which include charity and medical deductions, are more reasonable for taxpayers with large adjusted gross incomes. If a taxpayer claims larger th average itemized deductions for a given level of income, the chances of an IRS audit are increased. Data (in thousands of dollars) on adjusted gross income and the average or reasonable amount of itemized deductions follow. Adjusted Gross Income ($1,000s) 22 Itemized Deductions ($1,000s) 9.6 27 9.6 32 10.1 48 11.1 65 11.5 85 120 19.7 23.5 (a) Develop a scatter diagram for these data with adjusted gross income as the independent variable. 30 25 20 15 • 10 5 Itemized Deductions ($1,000s) 0 20 40 60 80 100 120 Adjusted Gross Income ($1,000s) 140 30 25 20 15 10 5. Itemized Deductions ($1,000s) 30 25 20 15 10 • 15 • 10 5- 0 20 40 60 80 100 120 140 0 Adjusted Gross Income ($1,000s) 20 40 60 80 100…The Capital Asset Pricing Model (CAPM) is a financial model that assumes returns on a portfolio are normally distributed. Suppose a portfolio has an average annual return of 14.7% (i.e. an average gain of 14.7%) with a standard deviation of 33%. A return of 0% means the value of the portfolio doesn't change, a negative return means that the portfolio loses money, and a positive return means that the portfolio gains money. A) What percentage of years does this portfolio lose money, i.e. have a return less than 0%? B) What is the cutoff for the highest 15% of annual returns with this portfolio?
- If the expected return on the market is 8% and the risk free rate is 4% and the expected return is 12%, what is the market risk premium ?ZIMS store sells its products on installments in Karachi. The store decided to investigate the link between the life of the product and the cost. The data collected from store is shown in Table 1.1Table 1.1LIFE OF PRODUCT (Years) COST (Thousand Rupees)3.0 253.5 284.0 324.5 345.0 343.0 305.5 404.5 404.0 423.5 426.0 507.5 508.0 538.5 55a) Plot a scatter chart from the above data.b) Find the equation of the least square regression line in the form ? = ? + ??Given the value of a and b up to 3 decimal places. c) What are the exact interpretations of the estimated regression factors? d) Using your answer of part (b). Find the cost predicted by the regression line for 6.5 year’s life of a product.What is the market equalibrian point?
- The expected value of an accountant's profit and loss analysis is 0. Explain what this meansThe amount of income spent on housing is an important component of the cost of living. The total costs of housing for homeowners might include mortgage payments, property taxes, and utility costs (water, heat, electricity). An economist selected a sample of 20 homeowners in New England and then calculated these total housing costs as a percent of monthly income, 5 years ago and now. The information is reported below. Is it reasonable to conclude the percent is less now than 5 years ago? Homeowner Five Years Ago Now Homeowner Five Years Ago Now 1 17 % 10 % 11 35 % 32 % 2 20 39 12 16 32 3 29 37 13 23 21 4 43 27 14 33 12 5 36 12 15 44 40 6 43 41 16 44 42 7 45 24 17 28 22 8 19 26 18 29 19 9 49 28 19 39 35 10 49…a) Genenesis Dispensary is contemplating of opening a new branch in Mwanza. If the medical for medical service is favourable, Genesis could realize a net profit of Tsh.100 million. On the other hand, if the market turn out to be unfavourable, it can end up losing Tsh. 40 million. Of course, Genesis may opt not to persue this option of expanding its operations. In the absence of data from which to base its decision, te best guess for Gensis is equally likely that the dispensary will either be successful or unsuccessful Required: i) Use the decison tree approach, what decison should Genesis Dispensary take b) Market research firm named, Easy Market Access approach Genesis with an offer to undertake a study of Mwanza medical service market at a fee of Tsh. 5 million. Easy Market Access claims that their experience enables them to use Bayes’ Theoremn to make the following statements about different state of the market: ▪ Provide that the study is favourable, the probability of favourable…