1. Model 1: OLS, using observations 1-706 Dependent variable: RST   Coefficient Std. Error t-ratio p-value   const 3586.38 38.9124 92.17 <0.0001 *** TOTWRK −0.150746 0.0167403 −9.005 <0.0001 ***   Mean dependent var 3266.356 S.D. dependent var 444.4134 Sum squared resid 1.25e+08 S.E. of regression 421.1357 R-squared 0.103287 Adjusted R-squared 0.102014 F(1, 704) 81.08987 P-value(F) 1.99e-1810538.19 Log-likelihood −5267.096 Akaike criterion 10538.19 Schwarz criterion 10547.31 Hannan-Quinn 10541.71 RSTi =3586.38−0.150746 x TOTWRKi , R2=0.103287,SER=421.1357                                     (38.9124) (0.0167403)   Question? Test the significance of the slope coefficient of the regression in Part (1) above. Use 5% level of significance on: a. Level of significance approach (show your calculations of t-ratio) b. P-value approach (show your calculation of p-value)

Q: Mean of 100 observations is found to be 40. If at the time of computation two items are wrongly…

A:

Q: What is the random variable in this problem? rv X = the fat consumption of a randomly selected male…

A: It is given that  Mean, μ = 103.1 Standard deviation, σ = 4.32 Z-Score, Z = ( X - μ )/σ   Note:…

Q: if the population standard deviation is 1.5, them Find the standard deviation of x for an srs of 65…

A: Answer: From the given data, Population standard deviation(σ) = 1.5 Number of observations (n) = 65

Q: Calculate Mean, Median and Mode also find the Empirical Relation between them. the lower and upper…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: Why is it that interpolation is defined as the estimation of a function's value in a period that is…

A: Interpolation is the process of estimating the value of a function at points within an interval or…

Q: Samples of size 100 from Population 1 with mean 88 and standard deviation 12 and samples of size 90…

A: Given Population 1 Sample size= n1 =100 Mean=x1¯=88 S.D.=σ1=12   Population 2 Sample size= n2 =90…

Q: efore attempting these questions there's an error with the value in the Chi-squared minitab output.…

A: (i) The appropriate null and alternative hypotheses are stated below: H0: There is no statistical…

Q: =9, median =13, standard deviation -5 Find the coefficient of skewness (round to two decimals)

A: Answer: From the given data, Mean (x¯) = 9 Median = 13 Standard deviation(s) = 5

Q: What is a basic formula to determine relative frequency of provided data to determine a specific…

A: The relation of the number of times a number has been replicated to the total frequencies of all the…

Q: Use the formula to find the standard error of the distribution of differences in sample means,…

A: The answer is attached below,

Q: Assume that math test scores are normally distributed with a mean of 500 and a standard deviation of…

A:

Q: Explain Consistency and Asymptotic Normality of the OLS Estimators?

A: Let us consider the linear regression model- Where the outputs are denoted by yi, the associated…

Q: a) graph the frequency distribution of errors b) determine the most a

A: a) From the given information,  The errors are, Error -0.2 -0.23 3.17 0.3 0.09 1.24…

Q: Suppose the lengths of human pregnancies are normally distributed with = 266 days and o = 16 days.…

A: Mean, μ=266 Standard deviation, σ=16 The area to the right of X = 300 is 0.0168.

Q: What percent of the total population of data values are included at +/- 1 sigma? +/- 2 sigma? +/- 3…

A: What percent of the total population of data values are included at +/- 1 sigma? +/- 2 sigma? +/- 3…

Q: A particular fruit's weights are normally distributed, with a mean of 405 grams and a standard…

A: The question is about normal dist. Given : Popl. mean of weights of fruit ( μ ) = 405 gram Std.…

Q: 2. ……are used for numerical data consisting of paired observations taken from two numerical…

A: We know that scatter plot is a plot used to display values for typically two variables for a set of…

Q: you chose to compute a mode for a variable , which measure of variability would you most likely want…

A: variability : it describes mainly how far the data is from each other. Measure of variability :…

Q: A standard deviation of 0 implies: there is great variability in the data there is no variability in…

A: The standard deviation is a measure of variability of the data. The formula for the standard…

Q: Spray drift is a constant concern for pesticide applicators and agricultural producers. The inverse…

A:

Q: for normal distribution mean is 100 and standard deviation is 15 use the emperican graph and gave 1…

A: Normal distributionμ=100σ=15we draw empherical graph

Q: For samples of the specified size from the population described, find the mean and standard…

A: Given thatMean( = 62Standard devaition= 12

Q: What would be the most likely level of measurement for capturing variation on the types of crime…

A: Levels of measurement: Nominal: It categorizes the objects without any natural ordering. Ordinal: It…

Q: The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates.…

A: Tax rate Freq(f) x xf x^2 x^2*f 0.00 - 0.49 7 0.245 1.715 0.060025 0.420175 0.5 - 0.99 12 0.745…

Q: The mean and standard deviation of 20 items was found to be 10 and 2 respectively. Later it was…

A:

Q: How to find Distribution while given Estimator in point estimator

A: If you have an estimate and wish to know the probability distribution from which it is formed (i.e.,…

Q: Mean=8, median =11, standard deviation = 5 Find the coefficient of skewness (round to two decimals)

A: Answer: From the given data, mean = 8 , median = 11  and standard deviation = 5

Q: Investigation 4: Tempo Differences Between Genres Now we will consider if the difference in the…

A: a) The observed statistic used to estimate the parameter is the difference in means between EDM and…

Q: Which of the following represents the correct regression equation? 1) ŷ = -1.04 + 111x 2) x = 111.10…

A: Given that , the estimate of intercept coefficient is 111.10 (upto 2 decimal places). And the…

Q: There is a​ 5% chance that the mean reading speed of a random sample of 21second grade students will…

A:

Q: Suppose that the distribution of height of female students in University is normally distributed…

A: Since you posted a question with multiple subparts, we will solve first three subparts for you. To…

Q: what is the formula for finding the inter quartile range

A: Quartiles:Three Quartiles,The first quartile separates the lowest 25% of the observations from the…

Q: Is blood pressure discrete or continuous quantitaive variable? Why?

A: We can say a quantitative variable is discrete if it takes only finite and countable values.We can…

Q: But isn't the mean of the gamma distribution aplha (beta)

A: If alpha is a shape parameter and beta is scale parameter.

Q: Stephen Stigler determined in 1977 that the speed of light is 299,710.5 km/sec. Some measurements of…

A: Given: Mean, μ=299710.5 Level of significance=1% α=0.01 (i) Set the hypothesis: H0: μ=299710.5Ha:…

Q: Can you give me a particular situation that it is related to science wherein small standard…

A:

Q: The data for a chi-square test consist of numerical scores non-numerical categories ranks…

A: The data for a chi-square test consist of frequencies. It is commonly used for testing relationships…

Q: Draw the graph and highlight the area of ± 2 standard deviations.

A: The area of ± standard deviations.

Q: a standardize exam scores are normally distributed,in a recent year,the mean test scores was…

A: