QUESTION 4Express the null hypothesis and the alternative hypothesis in symbolic form for a test to support this claim. Usethe correct symbol (u. p. a) for the indicated parameter.A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p. is less than 2 in everyone thousand.Ho:p> 0.002H₁; p ≤ 0.002Ho: p < 0.002H₁: p2 0.002Ho p=0.002H₁ p > 0.002Ho: P = 0.002Hj: p < 0.002

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Answered: QUESTION 4 Express the null hypothesis…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Automobile accident and asked what they saw. One group of students was asked how fast were they going when they smashed into the car? Other group verb was changed to hit. Smashed into reported higher rates of speed than hit. Suppose a researcher repeats this study with current college students and obtains the following results. Smashed into Hit n=15 n=15 M=40.8 M=34.0 SS=510 SS=414 1. State the hypothesis 2. Do the results indicate a significantly higher estimated speed for the smashed into group? Use a two-tailed test with a=.05. Compute estimated Cohen's D to measure size of the effect. State numerical value and meaning.
Question 5
Answer the letter D only
● Question 3 Only about 10% of all people can wiggle their ears. Is this percent different for millionaires? Of the 379 millionaires surveyed, 30 could wiggle their ears. What can be concluded at the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: 80 F3 Ho: ? Select an answer ✓ H₁: ? Select an answer ✓ c. The test statistic ? ✓ = d. The p-value = e. The p-value is ? ✓ a f. Based on this, we should [Select an answer the null hypothesis. g. Thus, the final conclusion is that ... Submit Question (please enter a decimal) O The data suggest the population proportion is not significantly different from 10% at a = 0.01, so there is statistically insignificant evidence to conclude that the population proportion of millionaires who can wiggle their ears is different from 10%. $ (Please enter a decimal) O The data suggest the populaton proportion is significantly different from 10% at a = 0.01, so there is…
The average wait time to get seated at a popular restaurant in the city on a Friday night is 13 minutes. Is the mean wait time less for men who wear a tie? Wait times for 16 randomly selected men who were wearing a tie are shown below. Assume that the distribution of the population is normal. 11, 14, 14, 14, 13, 13, 10, 11, 10, 10, 12, 10, 12, 14, 13, 11 What can be concluded at the the a = 0.05 level of significance level of significance?
The average American consumes 85 liters of alcohol per year. Does the average college student consume less alcohol per year? A researcher surveyed 13 randomly selected college students and found that they averaged 82.1 liters of alcohol consumed per year with a standard deviation of 23 liters. What can be concluded at the the a = 0.10 level of significance? You may assume the data are normally distributed.
Answer the following. The guide on how to solve is already indicated..
Before the furniture store began its ad campaign, it averaged 222 customers per day. The manager is investigating if the average is smaller since the ad came out. The data for the 14 randomly selected days since the ad campaign began is shown below. Round your mean and standard deviation to three decimal places when doing these calculations. 224, 211, 206, 206, 232, 189, 222, 197, 220, 210, 212, 213, 208, 189 Download CSV Assuming that the distribution is normal, what can be concluded at the a = 0.01 level of significance?
show all solutions note: answer only number 5.3 the question is connected to number 5)
Question 4 Suppose that, for some hypothesis test, a=0.05 and the P-value is computed to be 0.754. What is the appropriate conclusion? Reject the null hypothesis at a significance level of 0.05. It is not possible to make a conclusion based on the information provided. Fail to reject the null hypothesis at a significance level of 0.05. Accept the HO as the "P is low." Further testing is required before it can be determined if we should reject or fail to reject the null hypothesis at a significance level of 0.754.
Question 10
The mean height of a certain kind of plant is 132 centimeters. Suppose we want to carry out a hypothesis test to see if the mean height when these plants are treated with a certain chemical differs from 132. State the null hypothesis H, and the alternative hypothesis H, that we would use for this test. H, :0 O

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