5. In a certain county, the local newspaper reports that the average family income for that county is $45,000. Economists at the university believe that first-time home buyers have an average family income which is higher than this. Which of the following hypotheses would be appropriate for a significance test? Ho: µ= 45, 000 Ha: u 45, 000 b. H.: u = 45, 000 Ha: µ> 45, 000 45, 000 Ha: H< 45, 000 d. H.: u#45, 000 Ha: 45, 000 H. : u> 45, 000 Ha: u= 45, 000 a. C. H.: µ = e.

Q: The following information was obtained from matched samples: Individual    Type 1    Type 2 1…

A:

Q: The Department of Transportation reports that out of all fatal crashes, 6% of the drivers were…

A: Given,n=345x=25p^=xnp^=25345=0.0725α=0.05

Q: Test the claim that the mean GPA of night students is significantly different than 3.5 at the 0.1…

A: Given that,population mean(u)=3.5sample mean, x =3.51standard deviation, s =0.08number (n)=35

Q: usic player.   7.3  10.2  12.9  10.8  12.1 6.6  10.2   9.0   8.5   7.1   The research…

A: Let  X be the battery life in an hour of a fifth-generation iPod music player.  The given data is as…

Q: Following data are only a sample of number of cars rented daily: 3 2 4 2 5 4 2 6 1 Test the…

A: Given  Null hypothesis : mean number of car rented is greater than 4 Alternative hypothesis: mean…

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: An automobile manufacturer claims that the average gas mileage of a new model is 35 miles per gallon…

A: From the provided information, The claim is that the average gas mileage of a new model is 35 miles…

Q: Test the hypotheses at significance level a = 0.10

A: Since the both samples are large and standard deviations are known then we will use two sample Z…

Q: Back in April and May of 1985, the Gallup organization conducted a poll to estimate the   percentage…

A:

Q: In a survey of working parents (both parents working), one of the questions asked was "Have you…

A: Given: n1 = 200 n2 = 200 P1 = 29200 = 0.145 P2 = 24200 = 0.12 Formula used: Z-test =…

Q: concerned group of citizens wanted to know if the proportion of armed robberies in Texas was…

A:

Q: In a study to determine if the nitrogen content of the soil in Wyoming is significantly different…

A: Solution: State the hypotheses. Null hypothesis: H0: The nitrogen content of the soil in Wyoming is…

Q: 11.2,1 The table below summarizes data from a survey of a sample of women. Using a 0.05…

A: Given:   Man Woman Women who agree 458 345 Women who disagree 242 55

Q: 19% of all college students volunteer their time. Is the percentage of college students who are…

A: The hypothesized proportion is 0.19.

Q: Listed below are the heights (in inches) of fathers and their first sons. The data are from a…

A: We have given paired sampled data, calculation for sample mean and standard deviation is show below.…

Q: Is there a statistically longer mean wait time at Dr. Wright's office than Dr. Rodman's office?…

A:

Q: ) In testing hypotheses, which of the following would be strong evidence against the null…

A: If the P-value is smaller then we reject the null hypothesis.

Q: The American Library Association claims that at most 67% of library patrons actually borrow books.…

A:

Q: An article reports that blue eyed people earn less than brown eyed people, with these numbers:…

A: P-value is much greater than 0.05 level of significance.

Q: Include all  8 steps of Hypothesis Testing for each of the following problems 7. A researcher…

A: Solution: The observed count table is    Vernor's Coke   Pepsi  7 up  Row Total  Teacher 10 20…

Q: Carry out the hypothesis test for the mean of a normally distributed population given the following…

A: Given,H0:μ≥1.6Ha:μ≠1.6sample size(n)=15mean(x¯)=1.8standard deviation(s)=25=5α=0.10

Q: 21. A Canadian railway company claims that its trains block crossings no more than 8 minutes per…

A: Data  10.1,9.5,6.5,8,8.8,12,7.2,10.5,8.2,9.3

Q: The manager of a computer software company wishes to study the number of hours per week senior…

A: State the hypotheses. That is, there is no evidence to conclude that there is a difference in the…

Q: 1) Use the pulse rates in beats per minute​ (bpm) of a random sample of adult females listed in the…

A:

Q: . Suppose we are interested in the relationship between individuals’ place of residence (rural…

A:

Q: What is the value of t when the significance level alpha = 0.05 and our sample size is 12?  A) 1.771…

A: Given information- Significance level, α = 0.05 Sample size, n = 12 We have to find the t value.

Q: State your conclusion to the hypothesis test. Is achieving a basic skill level in a subject…

A: It is given that the value of chi-square test statistic is 0.30. Level of significance = 0.01.…

Q: A concerned group of citizens wanted to know if the proportion of armed robberies in Texas was…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: Suppose that when data from an experiment was analyzed, the P-value for testing Họ: u = 100 versus…

A: Consider that µ is the population mean.

Q: The Eastern and Western Major League Soccer conferences have a new Reserve Division that allows new…

A: Let E represent the eastern division and W represent the western division. The data values are given…

Q: If a researcher obtained a P-value of 0.01 for a hypothesis test that has a significance level of…

A: The P-value is 0.01.

Q: The accompanying data on degree of spirituality for a random sample of natural scientists and a…

A:

Q: In a survey of working parents (both parents working), one of the questions asked was "Have you…

A: As per our guidelines, we are allowed to answer up-to three sub-parts only. Here part a contains…

Q: A marketing company claims that it receives 8% responses from its mailing. To test this claim, a…

A: Given: p0=0.08x=25n=500p^=xn=25500=0.05

Q: Past studies have indicated that the percentage of smokers is estimated to be about 35%. Given the…

A: a) From the given information, the claim of the problem is the percentage of smokers has reduced.…

Q: Based on certain data, a null hypothesis is rejected atthe 0.05 level of significance. Would it also…

A: Concept of p-value: The p-value in hypothesis testing is the probability of obtaining a test…

Q: Is the proportion of wildfires caused by humans in the south higher than the proportion of wildfires…

A:

Q: In testing hypotheses, which of the following would be strong evidence against the null hypothesis?…

A: Basics:

Q: A city is collecting data on two neighborhoods, one low income and one middle income, to see whether…

A:

Q: A fast-food restaurant claims that a small order of french fries contains 120 calories. A…

A: H0: μ = 120 H1:μ &gt; 120 ________________________ When Ho is true , P-value is the probability that…

Q: Using 1% level of significance, would you reject Ho?

A:

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

A:

Q: Test the claim that the proportion of men who own cats is significantly different than 80% at the…

A:

Q: Use the following table to determine whether or not there is a significant difference between the…

A: Given that  Manufacturer 1 Manufacturer 2 n1 = 81 n2 = 64 X¯1=$15.80 X¯2=$15.00 σ1 =…

Q: on the average. The actual times (minutes) that 10 randomly selected trains block crossings were…

A: We have given that data And population mean = 8  And i want to find mean and standard deviation.

Q: In the language of hypothesis testing, which of the following is an INCORRECT statement? The null…

A:

Q: A sports reporter suggests that professional baseball players must be, on average, older than…

A: Given: n1 = 47 n2 = 43 X1 = 27.7 X2 = 25.5 S1 = 2.8 S2 = 3.3 Formula Used: Two-sample t-test for…