**Expressing Hypotheses in Symbolic Form**For each claim, express the null hypothesis ($H_0$) and the alternative hypothesis ($H_a$) in symbolic form. Use the correct symbol ($\mu$ for mean, $p$ for proportion).**4) Problems and Mean Weight Claims****a) Psychologist's Claim:**- **Claim:** 7.5 percent of the population suffers from professional problems due to extreme shyness.- **Parameter:** $p$ (proportion) - **Null Hypothesis ($H_0$):** $p = 0.075$ - **Alternative Hypothesis ($H_a$):** $p \neq 0.075$**b) Cereal Company's Claim:**- **Claim:** The mean weight of the cereal in its packets is at least 14 oz.- **Parameter:** $\mu$ (mean) - **Null Hypothesis ($H_0$):** $\mu \geq 14$ - **Alternative Hypothesis ($H_a$):** $\mu < 14$

Solution-: We find hypothesis in symbolic form for 4 (a) and 4 (b)

Answered: Express the null hypothesis and the…

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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Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol (μ, ρ, σ) for the indicated parameter. A psychologist claims that more than 5.8 percent of the population suffers from professional problems due to extreme shyness. Use p, the true percentage of the population that suffers from extreme shyness. Group of answer choices H0 : p = 5.8%H1 : p ≤ 5.8% H0 : p = 5.8%H1 : p < 5.8% H0 : p = 5.8%H1 : p > 5.8% H0 : p = 5.8%H1 : p ≥ 5.8%
A die was rolled 360 times and the results were: No. of Spots (outcomes) Frequency 1 54 2 70 3 58 4 62 5 50 6 66 Is the die balanced at a = 0.05? Given the computed and tabular value, make a decision. O A. Reject Ho, not significant at 0.05 level of significance B. Accept Ho, not significant at 0.05 level of significance O C. Reject Ho, significant at 0.05 level of significance O D. Accept Ho, significant at 0.05 level of significance
A baseball team claims that the mean length of its games is 2.4 hours. State H0 and Ha in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning. State the null hypothesis in words and in symbols. Choose the correct answer below. A. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at most 2.4 hours." The null hypothesis is expressed symbolically as, "H0: μ≤2.4." B. The null hypothesis expressed in words is, "the mean length of a baseball team's games is more than 2.4 hours." The null hypothesis is expressed symbolically as, "H0: μ≠2.4." C. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at least 2.4 hours." The null hypothesis is expressed symbolically as, "H0: μ≥2.4." D. The null hypothesis expressed in words is, "the mean length of a baseball…
Answer the letter D only
Examine the data and identify anything appearing to be unique. Select all that apply. A. The data are presented as quantitative but are actually categorical. B. The unusually large value of 80 minutes appears to be an error in recording the data. C. Most of the data values are rounded to the nearest 5 or 10 minutes, and may be estimates of actual commute times. D. Based on the gaps in the distribution, the data appear to be from two different populations.
State the conclusion based on the results of the test. The mean of the pressure required to open a certain valve is known to be u = 6.7 psi. Due to changes in the manufacturing process, the quality-control manager feels that the average pressure has changed. The null hypothesis was rejected. Choose the correct answer below. O A. The mean of the pressure has not changed. O B. There is not sufficient evidence that the mean of the pressure required to open a certain valve has changed. O C. There is not sufficient evidence that the mean of the pressure required to open a certain valve has not changed. O D. The mean of the pressure has changed. O E. There is sufficient evidence that the mean of the pressure required to open a certain valve has changed. O F. There is sufficient evidence that the mean of the pressure required to open a certain valve has not changed.
State whether each hypothesis is null or alternative. 1. The average iricome of families per month in a certain town is 38,000 pesos. 2. The proportion of husbands using motorcycles in region 2 is more than 50%. 3. The proportion of patients with lung cancer is higher among smokers than among nonsmokers.
Use the information provided to find the minimum sample size required to estimate an unknown parameter Mean(u). How many students should be randomly selected to estimate the average weekly earnings of students at a university? We want 80% confidence that the sample mean is within $ 3 of the population mean and the population standard deviation is known to be $ 57. Select one: a. 978 b. 362 c. 1388 d. 594 e. 2397
Express the alternative hypothesis in symbolic form. An automobile technician claims that the mean amount of time (in hours) per domestic car repair is more than that of foreign cars. Assume that two samples are independent. Let the domestic car repair times be the first population and the foreign car repair times be the second population. O A. H H1 = H2 O B. H 1 42. O C. H H1 #P2 O D. H: P1
A baseball team claims that the mean length of its games is more than 1.4 hours. State H0 and Ha in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning. State the null hypothesis in words and in symbols. Choose the correct answer below. A. The null hypothesis expressed in words is, "the mean length of a baseball team's games is not 1.4 hours." The null hypothesis is expressed symbolically as, "H0: μ≠1.4." B. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at least 1.4 hours." The null hypothesis is expressed symbolically as, "H0: μ≥1.4." C. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at most 1.4 hours." The null hypothesis is expressed symbolically as, "H0: μ≤1.4." D. The null hypothesis expressed in words is, "the mean length of a…

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