The US Department of Energy reported that more than 63% of homes were heated by natural gas. A random sample of 301 homes in Oregon found that 209 were heated by natural gas. Test the claim usin a 5% significance level. a. What type of test will be used in this problem? A test for a proportion b. What evidence justifies the use of this test? Check all that apply Onp> 5 and nq > 5 The sample size is larger than 30 There are two different samples being compared The population standard deviation is known The population standard deviation is not known

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A: Given: Sample size,n= 76 Number of students who have jobs,x= 35  Level of significance=0.05

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Q: What test statistic will be used if the sample size is below 30? a. t-test b. z-test c.…

A: What test statistic will be used if the sample size is below 30?

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A: As per our guidelines we are supposed to answer only one question per post. Given that, margin of…

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Q: We know that teenagers (ages 12 to 17) are much more likely to use instant messaging online than…

A: Solution: Given  n1=981 Sample size of teens n2=1217 sample size of adults.x1=736 teens used instant…

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Q: Women athletes at a certain university have a long-term graduation rate of 67%. Over the past…

A: H0 : p =0.67 H1 : p <0.67 Population proportion = p₀ = 0.67 Sample number of events = x =23…

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Q: estimate of for the following. E = .17, ? = .90, confidence level = 99%

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A: According to guidelines we solve only first three sub parts when  given multiple sub parts.

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A: According our policy we can answer only first part for remaining please repost the question.

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Q: The ANOVA procedure is a statistical approach for determining whether or not... Group of answer…

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A: The sample size is 313 in which 47 of them volunteered their time.

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A: Given that, n1=550x1=121n2=690x2=195

Q: A t-test would NOT be appropriate for which sample size? a.27 b.17 c.16 d.57

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Q: Based on the information in the ANOVA table below, how many participants were in this study. df MS…

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A: As per guidelines, we will answer first three subparts. Given information: p=0.50x=81n=150

Q: 6. Complete the table for the repeated measures ANOVA for a study where ten subjects are measured…

A: Here we are given that 10 subjects are measured four times each. That is ,  Number of subjects…

Q: Determine the sample size required to estimate the mean score on a standardized test within 2 points…

A: Given,margin of error(E)=2standard deviation(s)=15α=1-0.98=0.02α2=0.01Z0.01=2.33      (from Z-table)

Q: Variable X Y R-squared Adjusted R-squared Coefficient Std. Error t-Statistic 198.737 0.6704 0.9497…

A: The regression results are given.