Increasing numbers of businesses are offering child-care benefits for their workers. However, one union claimsthat more than 85% of firms in the manufacturing sector still do not offer any child-care benefits to theirworkers. A random sample of 490 manufacturing firms is selected and asked if they offer child-care benefits. Suppose the P-value for this test was reported to be p = 0.1070. Use ? = 0.10. A) Hypothesis: Ho : Ha :B) Decision about Ho based on the statistic.C) Conclusion about the problem statement.

Q: Consider the random sample of college students.  Data on gender and Full or Part-time student course…

A:

Q: Perform the following hypothesis test of a proportion: Ho: T = 0.33 HẠ: I # 0.33 The sample…

A: We have to find test statistics and p value...

Q: A researcher intends to estimate the effect of a drug on the scores of human subjects performing a…

A: The confidence interval is calculated by the combined value of sample statistic and the margin of…

Q: . The fuel efficiency of an SUV is measured in miles per gallon (mpg). A company claims that their…

A: Given  Sample mean x̄=29.2,n=33,s=5.8

Q: n general, if sample data are such that the null hypothesis is rejected at the ? = 1% level of…

A: α = 1% or 0.01   ___________________________    P-value (One Tailed ) = P-value (2 Tailed)2

Q: We would like to compare the proportions of Notre Dame Seniors who choose to live off-campus by…

A: The claim of the test is to test whether the proportion of seniors living off-campus is…

Q: A group of transfer bound students wondered if they will spend the same mean amount on texts and…

A: Difference in means = Mean(u) - Mean(c) = 1015 - 949 = $66Population standard deviation of…

Q: One study claimed that 86% of college students identify themselves as procrastinators. A professor…

A:

Q: Do sports drinks help prevent cramps in endurance sports? At the end of a marathon, officials will…

A: Observational study: In observational study, the individuals of the study are observed by the…

Q: Perform the following hypothesis test of a proportion: Ho: t = 0.33 Ha: На: п 0.33 The sample…

A: Population proportion = p₀ = 0.33 Sample size = n =100 Sample proportion = p̂ =  0.25

Q: we are interested in how much time young adults spend on social media. in one statistical study . we…

A: Given: In the statistical study, the researcher wants to know how much time young adults spend on…

Q: If we wanted to test whether the average number of errors made by those who drank ethanol differed…

A: Test is that whether the average number of errors made by those who drank ethanol differed…

Q: A television executive claims that the percent of households that watch the Macy's parade on…

A:

Q: A car leasing firm's records indicate that the mean number of miles driven annually in its cars has…

A: GivenA car leasing firm's records indicate that the mean number of miles driven annually in its cars…

Q: Perform the following hypothesis test of a proportion: HO: p = 0.33 HA: p  0.33 The sample…

A: We have given that,  HO: p = 0.33 vs HA: p ≠ 0.33 and sample size (n) = 100  Sample proportion (p̂)…

Q: In an attempt to determine why customer service is important to managers in the UAE, researchers…

A: Given Information:  Population mean (u) = 4.3 Standard size (s) = 0.574 Sample size (n) = 31  Level…

Q: A newsletter publisher believes that over 33% of their readers own a laptop. For marketing purposes,…

A: Given that  Claim: Over 33% of their readers own a laptop.  Decision : Reject the null hypothesis.

Q: A recent study randomly selected women from various countries around the world and collected…

A:

Q: Do families and singles have the same distribution of cars? Use a level of significance of 0.05.…

A: The objective of this question is to determine whether families and singles have the same…

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 30 of 282 treated subjects…

A: From the provided information, Population proportion (p) = 0.10 The hypotheses can be constructed…

Q: Consider the random sample of college students.  Data on gender and Full or Part-time student course…

A:

Q: Body Mass Index is a measure of body shape. Duran et al. (2013) investigated BMI in Texas youth. In…

A: Solution:  The 95% confidence interval for difference in means μ1-μ2 is  ( -2.9517451, 0.2764086)

Q: The company that you work for requires that less than 3% (.03) of the microchips that you deliver…

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have…

Q: A cereal company claims that the mean weight of the cereal in its packets is not 12 oz.  Identify…

A: It is given that the claim is that the mean weight of the cereal in its packets is not 12 oz.

Q: One study claimed that 86 % of college students identify themselves as procrastinators. A professor…

A: The question is about hypo. testingGiven :Popl. prop. of college stud. identify themselves as…

Q: 19% of deaths among male adults can be attributed to heart diseases. Is this percentage different…

A: Solution: It is given that 19% of deaths among male students can be attributed to heart diseases.

Q: The American Psychological Association reported that children with musical training showed better…

A: Hypothesis Testing The process of drawing conclusions about a population based on a study of a…

Q: A publisher reports that 46% of their readers own a Jaguar. A marketing executive wants to test the…

A: Given,sample size(n)=220sample proportion(p^)=0.50α=0.05H0:p=0.46H1:p>0.46

Q: Perform the following hypothesis test of a proportion: HO: p = 0.125 HA: p 0.125 The sample…

A:

Q: A newsletter publisher believes that less than 36%36% of their readers own a laptop. For marketing…

A: The objective of the question is to interpret the results of a hypothesis test and draw a conclusion…

Q: A study was undertaken with 24 randomly selected male subjects who were to undergo such surgery. The…

A: It is required to identify the correct alternative hypothesis, based on the given null hypothesis…

Q: A random sample of Americans were categorized according to their happiness and their income level.…

A: H0: Income and Happiness are independent HA: Income and Happiness are dependent

Q: scores. He obtained a random sample of 31 high-income individuals and found the sample mean credit…

A: Sample size n =31Sample mean=722.3Standard deviation =81.1

Q: The sample proportion is 0.1 based on a sample size of 95. Use a 10% significance level. The…

A:

Q: To test the hypothesis that the population mean mu=16.2, a sample size n=25 yields a sample mean…

A: Given:To test

Q: The company that you work for requires that less than 3% (.03) of the microchips that you deliver…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: A new shampoo is being test-marketed. A large number of 16 ounce bottles were mailed out at random…

A:

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.