Compute ? and find out if age (in years) has a relation to the blood pressure of an individual
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A: The formula of the correlation coefficient is:
Q: f. What percent of patients have more than 80 distressing/scary thoughts a day? g. Are these data…
A: The data of 20 patients is given from which it is asked to compute the percentage of patients who…
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A: The objective of this question is to find the equation of the least squares line y = a + bx, where…
Q: The graphs below give the diabetes mortality rate for countries with low per capita income and…
A: Given that,
Q: Is the height (in inches) of students in this class a discrete or continuous variable?
A: Here height of students in the class is a continuous variable.
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A: We have to find correlation coefficient ( r ). Formula :
Q: x 5.75 6.25 6.75 7.75 8.25 y 31 26 38 74 72 Find the value of the coefficient of…
A: It is an important part of statistics. It is widely used.
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A: Data given Y:4,28,30,36,77 n=5
Q: Explain the Difference between Absolute dispersion and relative dispersion?
A: The required answer is given below:
Q: Ocean currents are important in studies of climate change, as well as ecology studies of dispersal…
A: x y x2 y2 xy 76 14.2 5776 201.64 1079.2 79 19.6 6241 384.16…
Q: The sales of a company for the last cight years are given below : 1987 52 1988 1989 45 - 98 Estimate…
A:
Q: Examine the Function For relative extrema and sadde points. xy - %3D
A: we have given a function g(x, y) = xy we have to examine the function for relative extrema and…
Q: For statistics: example of a continuous scale
A: The objective of the question is to provide an example of a continuous scale in statistics. A…
Q: What percentage of the variation in y can be explained by the corresponding variation in x and the…
A: It is given that X be the elevation for an archaeological site in the southwestern United States Y…
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A: From the provided information, x y 5.75 31 6.25 26 6.75 38 7.75 74…
Q: best tools, pottery, and household items when they visited higher elevations for their summer camps.…
A: Given Enter the given data into Excel
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A:
Q: n currents are important in studies of climate change, as well as ecology studies of dispersal of…
A:
Q: Identify the permanent effect on y?
A:
Q: Find the equation of the least-squares line. (Round your values to four decimal places.) Use the…
A: Given data, X Y X*Y X*X 2 91 182 4 6 46 276 36 7 32 224 49 9 6 54 81 12 4 48 144
Q: The cost of fuel is the largest component of cost of ownership for most vehicles. Fuel cost is…
A:
Q: Determine and explain why the following is discrete or continuous variable 1. income of a teacher…
A: A variable can be discrete or continous. Discrete variable are countably finite and it will be…
Q: Find the equation of the least squares liney=a+bx. Round a and b to three decimal places. O-83.789+…
A: Given that X Y X \cdot YX⋅Y X^2X2 5.25 39 204.75 27.5625 5.50 54 297 30.25 5.75 31…
Q: (a) Would you expect a>0 or a<0? What about b? You would expect a 0 and b o. (b) To fit the values…
A: h=heart disease risk index x=BMI (body mass index) y= physical activity in minutes of exercise each…
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A: The method of least squares is a standard approach in regression analysis to approximate the…
Q: Ocean currents are important in studies of climate change, as well as ecology studies of dispersal…
A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly…
Q: 3) Data were collected to explain the amount of a customer's purchase (expressed in $'s) based on…
A: Given : Regression Result : Adjusted R-Square = 0.508 ANOVA df SS MS F Significance F…
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A:
Q: Conclusion Reject the null hypothesis, there is sufficient evidence that p> 0. O Reject the null…
A: Hi! Thank you for the question, As per the honour code, we are allowed to answer three sub-parts at…
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A: Given data is : x 5.50 6.50 7.25 8.00 8.75 y 10 41 53 89 89
Q: From the data given below compute quantity index for 1983 Price in 1982 (Rs.) 10 20 30 30 Commodity…
A:
Q: (b) What proportion of women have blood pressures between 73 mmHg and 91 mmHg ?…
A:
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A: Answer: 29.00 Explanation: Let y= 6 15 14 52 58 Here we want to…
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A: It is given that r=0.592,r2=0.35.
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A: Solution:Straight line equation is y=a+bx.The normal equations are∑y=an+b∑x∑xy=a∑x+b∑x^2The values…
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A:
Q: Is the statement below true or false? Continuous is the type of quantitative data that is the…
A: The quantitative variable measures or counted only numerical values. They are classified into…
Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…
A: Given data, X Y X*Y X*X Y*Y 6 28 168 36 784 6.5 20 130 42.25 400 6.75 17 114.75 45.5625 289…
Compute ? and find out if age (in years) has a relation to the blood pressure of an individual
Step by step
Solved in 3 steps with 2 images
- The numbers of polio cases in the world are shown in the table for various years. Year Number of Polio Cases (thousands) 1988 1992 1996 2000 2005 2007 350 138 32 6 3.2 1.3 Let f(t) be the number of polio cases (in thousands) t years after 1980. Copy the data to Desmos to draw a scatterplot of the data. Make sure to adjust the years so they represent years after 1980. a) Is it better to model the data with a linear or with an exponential model? Select an answer b) Use regression in Desmos to find an appropriate model for f. Make sure to check Log mode in the parameter window in Desmos if you are fitting an exponential model. f(t) places. Round the coefficients to 4 decimal Hint: Use the variable t from the drop down menu when entering the equation. Do not just type in t. c) Predict the number of polio cases in 2019. d) Find the approximate half-life of the number of polio cases. Round the answer to one decimal place. yearsPls show work so I can understandA patient is classified as having gestational diabetes if their average glucose level is above 140 milligrams per deciliter (mg/dl) one hour after a sugary drink is ingested. Rebecca's doctor is concerned that she may suffer from gestational diabetes. There is variation both in the actual glucose level and in the blood test that measures the level. Rebecca's measured glucose level one hour after ingesting the sugary drink varies according to the Normal distribution with μ=140+5 mg/dl and σ=5+1 mg/dl. Using the Central Limit Theorem, determine the probability of Rebecca being diagnosed with gestational diabetes if her glucose level is measured: Once? n=5+2 times n=5+4 times Comment on the relationship between the probabilities observed in (a), (b), and (c). Explain, using concepts from lecture why this occurs and what it means in context.
- What is the type of the variable "The average speed of busses traveling through a major crossroad between 7:30 am and 8:30 am on a Sunday"? O a. Qualitative - Ordinal O b. Quantitative - Discrete O c. Qualitative - Nominal O d. Quantitative - ContinuousIt is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific cultural affiliation as the elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were obtained for a collection of archaeological sites in New Mexico: x 5.00 6.00 6.50 7.50 8.00 y 25 55 64 66 75 Find a for the equation of the least-squares line y=a+bx given that x=6.6 and y=57. Group of answer choices –57.039 –41.421 57.039 –56.621 –56.679Can values of a chi-square variable be negative yes or no?
- It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific cultural affiliation as the elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were obtained for a collection of archaeological sites in New Mexico:x5.756.257.258.259.25y2218786795What percentage of the variation in y cannot be explained by the corresponding variation in x and the least-squares line?Ocean currents are important in studies of climate change, as well as ecology studies of dispersal of plankton. Drift bottles are used to study ocean currents in the Pacific near Hawaii, the Solomon Islands, New Guinea, and other islands. Let x represent the number of days to recovery of a drift bottle after release and y represent the distance from point of release to point of recovery in km/100. The following data are representative of one study using drift bottles to study ocean currents. x days y km/100 71 76 31 92 203 14.2 19.6 5.8 11.2 35.9 (a) Verify that Ex = 473, Ey = 86.7, Ex = 61,451, Ey = 2033.69, Exy = 10995.7, and r 0.93868. %3D %3D %3D %3D Σχ 1 473 ΣΥ| 86.7 Ex2 61451 Ey2 2033.69 Exy 10995.7 r0.93868 (b) Use a 1% level of significance to test the claim p > 0. (Use 2 decimal places.) t 4.72 critical t 4.54 Conclusion Reject the null hypothesis, there is sufficient evidence that p > 0. O Reject the null hypothesis, there is insufficient evidence that p > 0. Fail to reject…The cost of fuel is the largest component of cost of ownership for most vehicles. Fuel cost is (almost) inversely proportional to gas mileage; higher gas mileage means lower fuel cost and vice-versa. If you keep track of the number of miles driven on each tank of gas as well as how much gas is purchased, it is easy to calculate gas mileage; many cell phone apps exist to track this. The data in the following table is the gas mileage for Mr. Hebert's 2015 Jeep Wrangler Unlimited. 12.85 14.98 15.36 17.09 18.86 13.28 15.11 15.62 17.50 19.07 13.48 15.12 15.65 17.66 20.91 14.65 15.13 16.41 18.17 21.17 14.71 15.14 16.80 18.27 22.11 f. Construct a 95% confidence interval to estimate the average fuel economy of the jeep. enter your response here≤μ≤enter your response here (Round your answers to 2 decimal places.)
- It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific cultural affiliation as the elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were obtained for a collection of archaeological sites in New Mexico: x 5.00 5.25 5.75 6.75 7.00 y 8 15 13 49 71 Find the equation of the least squares line . Round a and b to three decimal places. Find the correlation coefficient r for the elevation and percentage of unidentified artifacts (no specific cultural affiliation) at a given elevationHello, Please help me with all subparts of this answer for a study guide.Ocean currents are important in studies of climate change, as well as ecology studies of dispersal of plankton. Drift bottles are used to study ocean currents in the Pacific near Hawaii, the Solomon Islands, New Guinea, and other islands. Let x represent the number of days to recovery of a drift bottle after release and y represent The distance from point of release to point of recovery in km/100. The following data a representative of one study using drift bottles to study ocean currents. x day 72 79 32 96 203 y km/100 14.8 19.6 5.3 11.8 35.1 Σx=482 Σy=86.6 Σx2=62874 Σy2=2002.54 Σxy=11041.7 r=.93787 use a 1% level of significance to test the claim p>0.(use 2 decimal places) t=critical t= Se=4.4913 a=1.4966 b=.1641 D) find the predicted distance (km/100) when a drift bottle has been floating for 80 days.(use 2 decimal places) find a 90% confidence interval for your prediction of part D. (use 2 decimal places) lower limit=___km/100upper limit=___km/100 he was a 1% level of…
