Generally speaking, would you say that most people can be trusted? A random sample of n₂ = 240 people in Chicago ages 18-25 showed that r₂ = 46 said yes. Another random sample of n₂ = 273 people in Chicago ages 35-45 showed that ₂73 said yes. Does this indicate that the population proportion of trusting people in Chicago is higher for the older group? Use a 0.05. USE SALT (a) What is the level of significance? State the null and alternate hypotheses. Hol PP₂ H₂1 P1 P₂ Hot PyP₂ H₁¹ Pg > P2 O H! Py < PS Hi: p: ® P2 HolPqP₂ H₂1 P₂ P₂ (b) What sampling distribution will you use? What assumptions are you making? The Student's t. The number of trials is sufficiently large. O The standard normal. We assume the population distributions are approximately normal. O The Student's t. We assume the population distributions are approximately normal The standard normal. The number of trials is sufficiently large. What is the value of the sample test statistic? (Test the difference P₁ P₂. Do not use rounded values. Round your final answer to two decimal places.) (c) Find (or estimate) the P-value. (Round your answer to four decimal places.) Sketch the sampling distribution and show the area corresponding to the P-value. @O TAA @O

B. H0: P OR μ H1: P OR μ  C. T or z statistic

O myopenmath.com МyOpenMath b Answered: If n=31, ¯xx"(x-bar)=30, and s=10,... | bartleby 2020-2021 School Supply lists / Fourth Grade Netflix Suppose you are a researcher in a hospital. You are experimenting with a new tranquilizer. You collect data from a random sample of 8 patients. The period of effectiveness of the tranquilizer for each patient (in hours) is as follows: Hours 2.8 2.2 2.3 2.5 2.7 3 2.5 2.6 What is a point estimate for the population mean length of time. (Round answer to 2 decimal places) What must be true in order to construct a confidence interval in this situation? Select an answer Construct a 98% confidence interval for the population mean length of time. (Round upper and lower bounds to 2 decimal places.) What does it mean to be "98% confident" in this problem? O 98% of all confidence intervals found using this same sampling technique will contain the population mean time. There is a 98% chance that the confidence interval contains the sample mean time. The…

A sports statistician is interested in determining if there is a relationship between the number of home team and visiting team losses and different sports. A random sample of 526 games is selected and the results are given below. Find the P-value to test the claim that the number of home team and visiting team losses is independent of the sport. Home team losses Visiting team losses Football 39 31 OA. 0.005 0.10 OC. 0.05< P-value < 0.10 O D. P-value < 0.005 Basketball Soccer 156 98 25 19 Baseball 83 75 0

A survey was conducted to research the public's views on potholes. When the results were analyzed, researchers found that 65% of adults age 20 to 40 view potholes as a serious problem, but only 47% of adults age 60 and older view potholes as a serious problem. Researchers are interested in the difference in proportions of adults age 60 and over and adults age 20 to 30. The standard error for the difference in proportions is 0.011. Which of the following is the margin of error for a 95% confidence interval? Group of answer choices 0.021 0.028 0.011 0.018

For F(2,54) = 6.10, p <.01 was the result statistically signifigant

A measure of social anxiety classifies people as having social anxiety disorder if they score in the upper 5%of the population. Determine the cut score for this diagnosis, given that the measure has μ=60 and σ=12

just the last part thank you!

The old variety of a plant has 70% pink flowers. A new variety is developed. In a random sample of 93 plants from the new variety, 59 had pink flowers. Test the claim that the percent of plants with pink flowers for the new variety is different than 70%. Use a 0.10 level of significance.   Question 6 options:   Reject H0 Using a 0.10 level of significance there is evidence to say the proportion of pink flowers is not different than 0.70   DO NOT Reject H0 Using a 0.10 level of significance there is not evidence to say the proportion of pink flowers is different than 0.70

A new cream was developed to reduce the irritation caused by poison ivy. To test the effectiveness, researchers placed an ad online asking for volunteers to participate in the study. One hundred subjects replied and were informed that one group would receive the new cream and the other group would Which of the following accurately describes the benefit of comparison in the experiment? O The overall level of irritation can be compared to see if the new cream had a significant effect. O The level of irritation for both groups can be receive a cream with no active ingredient. All 100 subjects were exposed to poison ivy. Fifty were then randomly assigned to the group with the new cream, and 50 were randomly assigned to the group with the cream with no active ingredient. After three days, the subjects' level of irritation was measured. compared to see if the new cream had a significant effect. O The level of irritation in the treatment group only can be compared to see if the new cream had…