A firm has economies of scale if, as the firm increases its output,   Question 18 options:   The firm's price rises.   The firm's profits increase.   The firm's fixed cost decreases.   The firm's average cost decreases.

Q: (Simplify your answer.) (Simplify your answer.)

A: It is given that  Mean, μ = 73 Standard deviation, σ = 6 Sample size, n = 36

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A: State the hypotheses. Null hypothesis: H0: pl–p2=0 Alternative hypothesis: H1: pl–p2≠0

Q: ONLY QUESTION 3******

A: 3) The objective is to predict the price of a 2000-square-foot house in South Salinas.

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A: Given data is x 1 1 2 4 4 5 y 38 45 52 47 65 67

Q: 1. Calculate the t-statistic for a test comparing the coefficient on X to a null hypothesis value of…

A: Ho: X=0 H1: X=/0 hence  t=(x-X)/S.E.(x)  =(0.9-0)/0.15  =6 t-statistic value=6

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Q: (b) Gibbs Baby Food Company wishes to compare the weight gain of infants using its bran its…

A: Given that  Sample sizes n1=40  , n2=55 Sample mean x1=7.7 , x2=8.15

Q: South Salinas Price 599 465 595 1185 640 566 499 611 439 512 999 755 405 650 489 652 629 420 639 482…

A: linear correlation between price and square feet in North Salinas

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A: Given "Black Friday" occurs annually the day after Thanks giving.

Q: (a) For these data, female life expectancies that are greater than the mean of the female life…

A: The slope is -0.48 and it is negative.

Q: nces. Do married couples choose similar or different personality types in their mates? The following…

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Q: Directions. Test the significance of the following correlation coefficients. 3. -0.58 4. 0.63 5.…

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A: The mean is 131,000 and the standard deviation is 17,000.

Q: The legal limit for the amount of suspended solids discharged into rivers is 60mg/liter/day. A study…

A: Given: Sample size n = 20 Sample variance s2 = 39 Confidence level = 90% Formula Used: Confidence…

Q: . For which data set is the sample correlation coefficient r closest to 0? B. Which data set has an…

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Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

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Q: A. For which data set is the sample correlation coefficient r closest to −1? B. For which data set…

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Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…

A: As per our guidelines we are suppose to answer only one question. Given,sample size(n)=25sample…

Q: 12.52 10.75 8.18

A: The correlation coefficient is a statistical indicator of how closely two variables change in…

Q: he lifetimes in hours of two brands of batteries follow normal distributions with means μX ,μY…

A: The solution is given in the steps below.  Thanks!

Q: Given the probability distribution of a certain variable, what is the value of the cumulative…

A: Hi there! Thanks for posting the question. Since there are multiple questions, we will solve one…

Q: J 1 When interpreting F (9, 29) = 4.78, p > 0.05, how many subjects were tested in this simple…

A: Followings are the Explanation of the question

Q: An investigation was carried out to determine how the supply of a growth hormone affects the weight…

A: Given: Control Group: n1 = 5 X1 = 41.8 s1 = 7.6 Treated Group: n2 = 7 X2 = 60.8 s2 = 16.4…

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Q: Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are…

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Q: Suppose that the pairwise comparison method is used on the following preference table. If A, C, and…

A: WE WILL USE PAIRWISE COMPARISON METHOD in this total 10 comparisons are made A vs B A vs C A vs D A…

Q: 18. The mean lifetime of a wristwatch is 25 months, with a standard deviation of 5 months. If the…

A: Comment: As per the our company guidelines we are supposed to answer only one question. Kindly…

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A: We have given the following information Mean = 20 Standard deviation = 2 And n = 64

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A: Given: Age, x Length in Micrometers, y 76 7906 87 9043 97 10091 104 10808 106 11024…

Q: Hi, What do I need to change so I see eight bars instead of only 7?

A: The histogram you got  The histogram which you got, suggest that you have 7 rows of data entered in…

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Q: Identify if the following statements is a proper interpretation of a 95% confidence interval.…

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A: Given equation f(x ) = 9.44x +84.182 (A ) Given x=11 then f(x)= ? ( B ) Given f(x) =246 then x = ?

Q: (a) From the regression equation, what is the predicted sleep time (in hours) when the GAS score is…

A: It is given that the GAS score represented by x and the number of hours of sleep last night…

Q: Directions. Test the significance of the following correlation coefficients. 3. -0.58 4. 0.63 5.…

A: 3) The correlation coefficient is -0.58.

Q: To calculate the slope, first calculate SP and SS: SP= , and SS₂ = (Hint: For SP use the…

A: From given data: n1=4, Mean of Number of treats x¯=∑xin1=104=2.5 also, n2=4, Mean of Number of…

Q: 2) Determine the critical value(s) of the test statistic for each of the following small samples…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

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A: From the given data we make the following table to compute coefficient of correlation r between the…

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

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Q: We would like to determine the sample size necessary to ensure a probability of a type I error of…

A: Given: Type I error (α)=0.025Type II error (β)=0.05Variance(σ2)=100standard deviation(σ)=10μ0=65…

Q: Compute the Chi-square for  a test of independence hypothesis. The following data was collected…

A: please see the attachment.................

Q: 7. Name 2 types of censoring that can occur during follow-up in a cohort study or clinical trial.…

A: Types of censoring tht occur during follow up in clinical trial are  1) point Censoring  2) Interval…

Q: A company claims that the mean monthly residential electricity consumption in a certain region is…

A: Given n=69 X-bar=880 Mu=860 Alpha=0.01 Standard deviations=120