The coefficient of determination (²) is 0.887 The F-ratio is which me the assessor relationship between the selling price a 0.922 rea of the house. (Hint: The critical value of Fo.05,1,13 is 4.67.) I Which of the following is an approximat O 175.3 to 216.1 1.008 reject, at the 5% level of significance, the null hypothesis that th rediction interval for the selling price of a house having an area (size) of 15 (hundred) squa

7. Scores for mathematics majors on the verbal reasoning portion of the GRE are normally distributed with a mean of 154 and a standard deviation of 7. Find the one test score on the GRE that would separate the top 75% from the bottom 25%. Hint: This score would be in the 25th percentile. (5 pts.) a) Label the graph with the mean, z-score, and relevant information from the context of the problem. Shade the area on the graph. b) z-score: c) Probability Statement: Screenshot of GeoGebra Probability Calculation: d) Score on the test rounded to the nearest whole number: e) Written sentence summarizing the problem with context:

6.2 Question 13 In a sample of 13 randomly selected high school​ seniors, the mean score on a standardized test was 1196 and the standard deviation was 168.1. Further research suggests that the population mean score on this test for high school seniors is 1013. Does the​ t-value for the original sample fall between −t0.99 and t0.99​? Assume that the population of test scores for high school seniors is normally distributed. The​ t-value of t=nothing ▼   does does not fall between −t0.99 and t0.99 because t0.99=nothing

Consider the following data on price ($) and the overall score for six stereo headphones tested by a certain magazine. The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from 0 (lowest) to 100 (highest). Brand Price ($) Score A 180 74 B 150 69 95 59 70 56 70 42 F 35 24 (a) The estimated regression equation for this data is ý = 23.398 + 0.306x, where x = price ($) and y = overall score. Does the t test indicate a significant relationship between price and the overall score? Use a = 0.05. State the null and alternative hypotheses. O Ho: Bo = 0 H: Bo + 0 O Ho: B, = 0 O Ho: B1 + 0 H: B1 = 0 O Ho: B, 20 H: B, < 0 O Ho: Bo *0 H: Bo = 0 Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = What is your conclusion? O Do not reject Hn. We cannot conclude that the relationship between price ($) and overall score is significant. O Reject H.. We…

= Let be the population mean of a certain population. In testing Ho : μ μ 2.4 versus H₁ : μ ‡ 2.4, a random sample of size 144 was obtained which yield a sample mean of 2.31 and sample standard deviation 0.25. a. Find the P-value. b. Is it reasonable to continue to believe Ho? Explain your answer.

Using the following information.    Coefficients Intercept −12.8094 Independent variable 2.1794 ANOVA   df SS MS F Regression 1 12,323.56 12,323.56 90.0481 Residual 8 1,094.842 136.8553   Total 9 13,418.4     Estimate the value of Ŷ when X = 4.   Multiple Choice   10.45   3.73   8.718   −4.092

Civil engineers collect data from an area in Canada on the amount of tons of salt used to keep highways in good condition during a snow storm.The amount of salt for n = 30 has(# 1 at image) What can be said with 95% confidence about the maximum error if (# 2 at image) is used as a point estimator of the true population mean of the amount of salt required for a snow storm?

Need help with # 6 .

3.6 Triathlon times, Part II: The distribution for triathlon time varies depending on the population you are describing. The distribution for men ages 30 - 34 is N(µ-4323, o=562). The distribution for women ages 25 - 29 is N(μ-5227, o=828). Note, these distributions list the triathlon times in seconds. Use this information to compute each of the following. Report your answer to 2 decimal places. a) The cutoff time for the fastest 5% of athletes in the men's group, i.e. those who took the shortest 5% of time to finish. b) The cutoff time for the slowest 10% of athletes in the women's group.