**Hypothesis Testing Scenario**An internet provider is attempting to secure advertising deals by claiming that the mean time competitors' customers spend online per day is less than 39 minutes. You are tasked with testing this claim. **Questions:**(a) How would you write the null and alternative hypotheses if you represent the internet provider and want to support the claim?(b) How would you write the null and alternative hypotheses if you represent a competing advertiser and want to reject the claim?**Hypotheses:**- **(a)** - **Null Hypothesis (H₀):** The mean time competitors' customers spend online per day is greater than or equal to 39 minutes. - **Alternative Hypothesis (Hₐ):** The mean time competitors' customers spend online per day is less than 39 minutes.- **(b)** - **Null Hypothesis (H₀):** The mean time competitors' customers spend online per day is less than or equal to 39 minutes. - **Alternative Hypothesis (Hₐ):** The mean time competitors' customers spend online per day is greater than 39 minutes.

Given information- Population mean, µ = 39 minutes We have given that an internet provider is trying…

Answered: An Internet provider is trying to gain…

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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Do sit down restaurant franchises and fast food franchises differ significantly in stock price? Specifically, is the average stock price for sit-down restaurants different from the average stock price for fast food restaurants? If sit down restaurants are considered group 1 and fast food restaurants are group 2, what are the hypotheses of this scenario?
Let’s say your grandfather is 72 years old and your question is “Are my classmates’ grandfathers, on average, older than mine is”? What would be the null and alternative hypotheses in this scenario? Group of answer choices H0 : The population average age is less than 72. Ha : The population average age is greater than or equal to 72. The population average age is greater than 72. Ha : The population average age is less than 72. H0 : The population average age is equal to 72. Ha : The population average age is less than 72. H0 : The population average age is equal to 72. Ha : The population average age is greater than 72.
How would you write the null and alternative hypotheses?
Which hypothesis test would be appropriate to determine whether the new variety of orange has a significantly higher content of vitamin C than the variety that is currently the top seller? Do NOT perform a hypothesis test – simply tell me which test should be used, why you chose this test, and give the formula for the test statistic.
You may need to use the appropriate appendix table or technology to answer this question. In 2012, seventy percent of Canadian households had an internet connection. A sample of 370 households taken in 2013 showed that 76% of them had an internet connection. We are interested in determining whether or not there has been a significant increase in the percentage of the Canadian households that have internet connections. (a) State the null and alternative hypotheses to be tested. (Enter != for as needed. Let p be the proportion of all Canadian households with internet connections.) Ho: на: (b) Compute the test statistic. (Round your answer to two decimal places.) (c) The null hypothesis is to be tested at the 5% level of significance. Determine the critical value(s) for this test. (Round your answer(s) to two decimal places. If the test is one-tailed, enter NONE for the unused tail.) test statistic (d) What do you conclude? Do not reject Ho. We can conclude that there has been a…
A refrigerator manufacturer claims that the mean life of its competitor's refrigerators is less than 16 years. You are asked to perform a hypothesis test to test this claim. (a) How would you write the null and alternative hypothesis if you represent the manufacturer and want to support the claim? (b) How would you write the null and alternative hypothesis if you represent the competitor and want to reject the claim? (a) Ho Ha ▼ 16 16
The Census Bureau's American Housing Survey has reported that 76 percent of families choose their house location based on the school district. You want to conduct a test of whether the population proportion really equals 0.76. Use a 0.10 level of significance and a sample of 440. The proportion of families in your sample that choose their home based on the school district was 0.78. a. State in statistical terms the null and alternative hypotheses. (2 points) b. Determine the appropriate test statistic. (z or t) (2 points) c. Determine the critical values. (2 points) d. Compute the test statistic. (2 points) e. Make a decision on the hypotheses. (which hypothesis is correct?) (2 points)
Suppose you want to test the claim that a population mean equals 34. (c) State the alternative hypothesis if you believe (based on experience or past studies) that the population mean may exceed 34. A-H1: ? > 34 B-H1: ? < 34 C-H1: ? = 34D-H1: ? ≠ 34 E-H1: ? ≥ 34 (d) State the alternative hypothesis if you believe (based on experience or past studies) that the population mean may be less than 34. A-H1: ? > 34 B-H1: ? < 34 C-H1: ? = 34 D-H1: ? ≠ 34 E-H1: ? ≥ 34
Suppose you want to test the claim that a population mean equals 40. (a) State the null hypothesis. H0: μ > 40 H0: μ < 40 H0: μ = 40 H0: μ ≠ 40 H0: μ ≥ 40 (b) State the alternate hypothesis if you have no information regarding how the population mean might differ from 40. H1: μ > 40 H1: μ < 40 H1: μ = 40 H1: μ ≠ 40 H1: μ ≥ 40 (c) State the alternative hypothesis if you believe (based on experience or past studies) that the population mean may exceed 40. H1: μ > 40 H1: μ < 40 H1: μ = 40 H1: μ ≠ 40 H1: μ ≥ 40
Dreamfilms Studios boasts that its summer features are so good that at least half of all tickets sold one summer are for its films. A competing studio claims that less than half of all tickets sold are for Dreamfilms' movies. After the hypothesis test is completed, the conclusion is to fail to reject the null hypothesis. If the true percentage of tickets sold for Dreamfilms Studios' movies that summer was only 48%, was an error committed? If so, what type?
Several recent studies have suggested that people who suffer from abnormally high blood pressure can benefit from regular exercise. She conducts a small sample of 3 random patients with high blood pressure and measures blood pressure before and after the exercise program. Subject Before After 1 155 133 2 160 140 3 145 120 Conduct a test to see if the claim is supportive. State the hypotheses from the previous problem. (high blood pressure problem)
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