4a. He seems flustered and asks, "That's higher than I thought! Since you didn't ask everyone in the company, how do you know that your numbers are representative of the entire company?" What do you say in response? Correct answers will reference the sampling method and the benefit of using the point estimate.

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A: From the given information, the sample of 60 men, 30% own cats. The sample of 140 women, 25% own…

Q: find the test value used to test the claim that the proportion of jellyfish stings at jones beach is…

A: Given, Sample size = 696 Sample proportion = 0.30   The null and alternative hypothesis is:

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Proportion is almost similar to the concept of probability. Proportion is a fraction of population…

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: From the given information, the confidence level is 90% and the margin of error (E) = 2.5% = 0.025…

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A:

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Given: Refer Standard normal table/Z-table OR use excel function "=NORM.S.INV(1-0.005)" to find…

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A: we have given that  sample 1 = N1=50  and sample proportion 1 =p1^=20%=0.2 sample 2 = N2=110  and…

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A: Given, n1=120                                         n2=100 p1=35%=0.35…

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A:

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: Givenclaim is proportion of men who own cats is larger than the proportion of women who own…

Q: e testing the claim that the proportion of men who own cats is significantly different than the…

A: p^1=0.5p^2=0.45 p^=180*0.5 + 160*0.45180+160 = 0.47 hypothesis: H0 :p^1=p^2H1:p^1≠p^2 since we have…

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A:

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

A: Given information- Margin of error, E = 7% = 0.07 Confidence level, c = 80% Since nothing is known…

Q: Suppose that an airline uses a seat width of 17.2 in. Assume men have hip breadths that are normally…

A: We know that if X ~ N(μ,σ2) Then z=x-μσ ~ N(0,1) And  P(Z<a) = ϕ(a) Where ϕ(*) is cdf of N(0,1)…

Q: In a recent year, the Better Business Bureau settled 75% of complaints they received. (Source: USA…

A: According to central limit theorem, if the sample size n is large enough such that np≥15 and…

Q: Write the answers in report style in 750 words:

A: Title: Applying the Sample Means Sampling Distribution in Business Survey ResearchIntroduction: When…

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A:

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Find z-critical value: Refer Standard normal table/Z-table OR use excel function…

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A: Denote p1 is true proportion of male who won cat and p2 is the true proportions female who won cat…

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A:

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: Denote p1, p2 as the true population proportions of men and women who own cats, respectively.

Q: Suppose you take a sample of 25 Reese's pieces. The proportion of orange is 0.55. What is the…

A:

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A: The objective of this question is to find the test statistic for the claim that the proportion of…

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A: The sample proportions are The pooled proportion or weighted estimate of p is

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A:

Q: You are testing the claim that the proportion of men who own cats is significantly different than…

A:

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Solution: From the given information, confidence level is 0.90, p=0.59 and E=0.03.

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A:

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A:

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A: In the hypothesis testing a pooled proportion pc is computed. This pooled proportion is computed by…

Q: You are testing the claim that the proportion of men who own cats is larger than the proportion of…

A: