Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 51.6 degrees.   Low Temperature ​(◦​F) 40−44 45−49 50−54 55−59 60−64   Frequency 3 6 13 7 2     Part 1 The mean of the frequency distribution is enter your response here degrees.

Q: Problem 4. IV-B 1 2 1 1 9 IV-A 2 5 5

A: For the given data,  Main Effect for IV-A: NO Main Effect for IV-B: NO

Q: Siven the fitted least squares regression line equation and statistics shown below, find the 90%…

A: The given regression equation is y^=7+9x, the remaining values are se=10.56,x¯=10,n=50 and…

Q: Consider the following time series data. Quarter Year 1 Year 2 1 2 3 4 4 2 3 5 СЛ 6 3 5 8 Year 3 7 6…

A:

Q: (b) Show the four-quarter and centered moving average values for this time series. Centered Moving…

A: Quarter Year 1 Year 2 Year 3 1 4 6 7 2 2 3 6 3 3 5 6 4 5 8 9

Q: A major research study concluded that the mean number of times that adolescents had engaged in…

A: Mean(x)=2.9 standard deviation(s)=0.7 sample size(n)=36 significance level(α)=0.05 claim is that the…

Q: You suspect minority students are not as supportive of the new principal of a large school because…

A: We have given thatn1 = 56 , x1 = 45n2 = 33,  x2 = 21Significance level (α) = 0.05Now,p̂1 = x1/n1 =…

Q: 10c. State the alternative hypothesis (two-tailed).

A: Here dependent variable (Y) = No. of times shoplifted Independent variable (X) = Age No. of pairs…

Q: Construct the confidence interval for the population mean . c = 0.95, x = 15.2, 0 = 8.0, and n = 50…

A: We have givnen that, n = 50, x̄ = 15.2, σ = 8.0 and confidence interval (c) = 0.95 or 95%

Q: 7. Construct a 95% confidence interval for the population mean, μ. Assume the population has a…

A: CL=0.95 Sample size, n=20 Sample mean, x¯=3120 Sample sd, s=677

Q: The following hypothesis-testing situation is given:   H0: π ≤ .50 and H1: π > .50. The…

A: The given hypothesis is H0:π≤0.50 and H1:π>0.50. The significance level is 0.10 and the sample…

Q: You are interested in estimating the the mean weight of the local adult population of female…

A: Standard deviation(σ) = 29Margin of error (E) = 8Significance level (α) = 1 - 0.96 = 0.04

Q: A poll is given, showing 30% are in favor of a new building project. If 8 people are chosen at…

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Q: Suppose if an introductory statistics textbook was given to all potential readers for review in…

A: The population distribution of ratings is as shown below: 50% of the readers give 5 stars. 25% of…

Q: Multiple-choice questions each have 4 possible answers, one of which is correct. Assume that you…

A: There are 3 multiple choice questions and each question has 4 possible answers among which only one…

Q: What is the correlation coefficient of these data? 20 15 10 0.56 1.5 0.98 -0.02 0.26 5 10 X 15 20

A: A scatterplot is a graphical representation which shows the relationship b/w 2 variables.

Q: x P(x) 0 0.05 1 0.1 2 0.1 3 0.75 Find the standard deviation of this probability distribution.…

A: Given Data :       X P(x) x * P(x) x Squared x^2 * P(X) 0 0.05 0 0 0 1 0.1 0.1 1 0.1 2 0.1…

Q: issued for each day. The data are listed below. At values. 70 48 41 68 69 55 70 57 60 83 32 60 72 58

A: Let μ be the population mean speeding tickets. Given that, The data set contains 14 observations.…

Q: c) Assume that E and F are independent events. Show that Ē and F are independent events.

A: c) The events E and F are independent.

Q: 16. Shoulder girth and height is studied for a group of adults. The mean shoulder girth is 107.20 cm…

A: a. The equation of the least squares regression line for predicting height based on shoulder girth…

Q: 17. You wish to test the claim that μ = 1420 at a level of significance of a = 0.01 and are given…

A: claim : μ = 1420α = 0.01n = 35x¯ = 1390σ = 82test statistic = ?

Q: Using R (image) Is there homoscedasticity?, is there additivity? is there independence?, is there…

A: The normality of the test can be tested using various methods. One such method is the Shapiro-Wilk…

Q: 15. The number of bedrooms (X) and the area in m² (Y) is measured for a large sample of apartments.

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

Q: Suppose that 10 countries submit bids for the summer Olympics. The Olympic committee will select 4…

A: Suppose that 10 countries submit bids for the summer Olympics. The Olympic committee will select 4…

Q: In the book Essentials of Marketing Research, William R. Dillon, Thomas J. Madden, and Neil A.…

A: Computer Assisted Ordering Below Industry Average Equal to Industry Average Above Industry Average…

Q: The following data, reproduced from Table 3.8 of Example 3-14, give the frequency distri- bution of…

A: Class Frequency 0 - 10 4 10 - 20 9 20 - 30 6 30 - 40 4 40 - 50 2

Q: If she wants to estimate this with a 92% confidence interval, what size sample should she use to…

A: Here given , confidence level = 92%  MOE = 4 minutes  population Standard deviation = 12 minutes

Q: (a) Using a weight of for the most recent observation, for the second most recent observation, and…

A: Here given week vise time series value of no of gallons of gasoline sold by gasoline distributor in…

Q: In the previous year, 40% of women over the age of fifty had regularly scheduled mammograms.…

A: Assume that p is the true population proportion of women over the age of fifty, who had regularly…

Q: 4. The number of hours 6 students spent for a test and their scores on that test are shown below:…

A: The number of hours 6 students spent for a test and their scores on that test are shown below:…

Q: 10:26 PM Thu May 4 STAT- Unit 6 Summative Assessment STAT- Unit 6 Summative Assessment ↑ T Seat…

A: Sample size, n=319 No. of people who sustained no injuries, x=95 α=0.05

Q: Attractiveness of body types has been a large discussion relating to effects on youth and culture.…

A: BMI designed by men n=35x¯=18.85s=1.75S.E Mean=0.277 BMI designed by women n=48x¯=25.860s=4.215S.E…

Q: I asked a sample of SCOB instructors how many football games they watched a particular weekend and…

A: From the provided information, The data values are as follow: 0, 3, 4, 1 Sample size (n) = 4

Q: (c) Use a = 0.2 to compute the exponential smoothing forecasts for the time series. Time Series…

A: One of the forecast methods is exponential smoothing forecast. It is the most used method in the…

Q: The average age of a Bunkerhill student is 28 years old with a standard deviation of 4.09 years.…

A: Answer:- Given, The average age of a Bunkerhill student is, μ = 28 years old and standard deviation,…

Q: n (2) P(UA) = ΣP(A); i=1 i=1 (b) P((4) 21-n+ΣP(4); i=1 t=1

A:

Q: K Complete parts a through d for the following (x,y) pairs of data points. (2,4), (3,6). (6,5),…

A: (a) Use EXCEL to construct the scatter plot EXCEL procedure: Go to EXCEL Go to Insert menu Select…

Q: minutes. What percentage of his commutes will be between 13 and 26 minutes, to the nearest tenth?

A: Let X be the random variable that amount of time to arrive. Given that, X~N(μ=23,σ=5)

Q: Weight (in tons) and fuel economy (in miles/gallon) were measured for a sample of seven diesel…

A: This question is about finding the coefficients for the fitted regression line and estimating the…

Q: What is the lower bound for a 95% confidence interval for the specificity of the following screening…

A: INFECTED  Healthy Total positive  50(TP) 29(FP) 79 Negative  15(FN) 116(TN) 131 Total 65 145…

Q: Group A: In a USA Today/Gallup poll conducted November 2-4, 2007, 768 of 1024 randomly selected…

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Q: Practice 7. The drying time of a certain type of paint under specified test conditions is known to…

A: For the distribution of drying time (in minutes) of paint, the population standard deviation is…

Q: to determine how many Karen Michelle dresses to order for the spring season.  Demand for the dresses…

A: Given: The demand for the dresses follows the normal distribution that includes the mean 400 and…

Q: You are interested in investigating whether the type of computer a person primarily uses and the…

A: The question is about categorical data analysis Given :   To find : a ) correct statistical test b…

Q: Suppose a chef claims that her meatball weight is less than 3 ounces, on average. Several of her…

A: Claim is that the meatball weight is less than 3 ounces  significance level(α)=10%=0.10 sample…

Q: The Ankle Brachial Index (ABI) compares the blood pressure of a patient's arm to the blood pressure…

A: n = 187x¯ =0.86s = 0.16α = 0.01claim : μ ≥ 0.9

Q: The sample size n, probability of success p, and probability of failure q are given for a binomial…

A: Solution-: Given: n=20, p=0.89, q=0.11 Can a normal distribution be used to appropriate the…

Q: 7. Wages for employees were measured resulting in the following graph 50% of the 40% of the of the…

A: The dataset contains a series of numbers, namely 1650, 1897, and so on, and the statistical meaning…

Q: is known that college students at a local community college study 12 hours per week with a standard…

A: Mean=12 Standard deviations=5 Sample size=9

Q: 3. P(4≤x≤8)=P(4) + P(5) + P(6) + P(7) + P(8)= C. P(4<x<8)=P(4.5) + P(5.5) + P(6.5) + P(7.5)= D.…

A:

Q: Suppose that A and B are events, P(A)=0.25 ,P(B)=0.36  and P(A and B)=0.24 Calculate the P(A|B)…

A: Answer: From the given data, P(A) = 0.25 P(B) = 0.36 P(A and B) = 0.24 A and B are two events,