(a) The estimated regression equation for this data is ý = 21.258 + 0.327x, where x = price ($) and y = overall score. Does the t test indicate a significant relati score? Use a = 0.05. State the null and alternative hypotheses. O Ho: P # 0 Hgi Bq = 0 O Ho: B1 = 0 %3D Ho: Bo = 0 Hai Do # 0 O Ho: B1 2 0 Hgi Bq < 0 O Ho: Po # 0 H3: Po = 0 Find the value of the test statistic. (Round your answer to three decimal places.)

Listed below are systolic blood pressure measurements​ (in mm​ Hg) obtained from the same woman. Find the regression​equation, letting the right arm blood pressure be the predictor​ (x) variable. Find the best predicted systolic blood pressure in the left arm given that the systolic blood pressure in the right arm is 85 mm Hg. Use a significance level of 0.05.    a. The regression equation is y= ​(Round to one decimal place as​ needed.)   b. Given that the systolic blood pressure in the right arm is 85 mm​ Hg, the best predicted systolic blood pressure in the left arm is   mm Hg.   ​(Round to one decimal place as​ needed.)

please view the information listed in the photos and answer the questions in both the photos! thank you :)

Use Excel to find an estimated linear regression equation using X1 and X2 as the independent variables and Y as the dependent.  Put your output on a fresh sheet. Then answer the following questions (excel chart in the picture)                                                                                                                                                                          Write down the estimates regression equation What is the expected value of Y if X1 is 240 and X2 is 290? Show your calculation at a 5%level of significance, are the true coefficients of X1 and X2 different from zero? Justify briefly using numbers from your excel output. 4. Using Excel, determine a 97% confidence interval for the true coefficient of X1

Use the given data to find the best predicted value of the response variable. Eight pairs of data yield r = 0.742 and the regression equation y = 55.8 + 2.79x. Also, y = 71. 125. What is the best predicted value of y for x = 8.

Given that the systolic blood pressure in the right arm is 90 mm Hg, the best systolic blood pressure in the left arm is how many mm Hg?

The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with electronic trades handled by discount brokers. As part of the survey, members were asked to rate their satisfaction with the trade price and the speed of execution, as well as provide an overall satisfaction rating. Possible responses (scores) were no opinion (0), unsatisfied (1), somewhat satisfied (2), satisfied (3), and very satisfied (4). For each broker, summary scores were computed by computing a weighted average of the scores provided by each respondent. A portion the survey results follow. Overall Satisfaction with Electronic Trades Brokerage AA BB CC DD FF GG HH II KK LL MM NN Satisfaction with Satisfaction with Trade Price Speed of Execution 3.1 3.1 3.3 3.5 3.2 3.2 3.8 3.7 2.6 2.7 3.9 2.5 3 4 3.2 3.3 3.1 2.8 2.9 2.4 2.7 2.4 2.6 2.3 3.7 2.5 3 1 3.2 3.2 4 3.7 3 2.7 2.7 3.4 2.7 2.3 4 2.5 3 2

The following estimated regression equation based on 10 observations was presented. ŷ = 28.1270 + 0.6906x, + 0.3980x2 (a) Develop a point estimate of the mean value of y when x, = 170 and x2 = 350. (b) Develop a point estimate for an individual value of y when X1 = 170 and X2 = 350.

In the following case find the best predicted value of y given the following: x = 2.00, r = -0.567 (p-value = 0.03),  y (bar)= 8.00, n = 30 and the equation of the regression line is: y (hat)= 7.00 - 2.00x

I need help finding the answers for A,B,and C