7.4.2b An education researcher claims that 56​% of college students work​ year-round. In a random sample of 600 college​ students, 336 say they work​ year-round. At α=0.10​, is there enough evidence to reject the​ researcher's claim? . ​(b) Find the critical​ value(s) and identify the rejection​ region(s).   Identify the critical​ value(s) for this test.   z0=

Question

7.4.2b An education researcher claims that

56​%

of college students work​ year-round. In a random sample of

600

college​ students,

336

say they work​ year-round. At

α=0.10​,

is there enough evidence to reject the​ researcher's claim? .

​(b) Find the critical​ value(s) and identify the rejection​ region(s).
 
Identify the critical​ value(s) for this test.
 
z0=

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Hypothesis Testing

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: (a) Use a calculator with mean and standard deviation keys to find x and s. (Round your answers to f...

A: (a) Mean and standard deviation Using TI Calculator: Use Ti calculator to find the mean and standard...

Q: Times for a surgical procedure are normally distributed. There are two methods. Method A has a mean ...

A: a) The method A is normally distributed with mean 31 and standard deviation 6. The method B is norma...

Q: Suppose height of men in the US is normally distributed with mean 70 inches and standard deviation 3...

A: According to the sum, the height of men in the US is normally distributed with mean 70 inches and st...

Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in old...

A: Given: Sample MeanX=93.8Sample Standard Deviations=44.8Sample Sizen=26

Q: You want to estimate the average weight in tons of loads carried by trucks through a particular stre...

A: Click to see the answer

Q: Select one card from a deck of well-shuffled cards. What is the probability that we draw an Even Pri...

A: A standard deck consists of 52 playing cards. Each card is in one of 13 denominations: ace (A), 2, 3...

Q: If 10,000 pounds of cotton candy are consumed each year, how many pounds of cotton candy are consume...

A: Solution: From the given information, 10,000 pounds of cotton candy are consumed each year.

Q: QUESTION 6 The following probability distributions of job satisfaction scores for a sample of inform...

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want solution...

Q: The price of a share of stock divided by the company's estimated future earnings per share is called...

A: Note: Hey, since there are multiple subparts posted, we will answer first three subparts. If you wan...

Q: The contingency table below shows the results of a survey of video viewing habits by age.      Vi...

A: Note: Hi! Thanks for posting the question. Since there are more than three sub-part questions, we wi...

Q: Statistics Question

A: It is given that the durations of 26 electronic outages in the community of Sonando Heights.

Q: How do you solve, ref W10Q1

A: Given Information Sample size(n) =4 Population standard deviation = 20 millimeters Significance leve...

Q: The United States Department of Agriculture (USDA) found that the proportion of young adults ages 20...

A: Given that, n =500, p =0.238 The values of mean and standard deviation are,   Checking conditions: ...

Q: Do you dislike waiting in line? A supermarket chain has used computer simulation and information tec...

A: Given: Average waiting time of the customers λ=22 seconds  

Q: The weight of a sophisticated running shoe is normally distributed with a mean of 12 ounces and a st...

A: Let X denote the weight of a sophisticated running shoe and it follows normal distribution with a me...

Q: Suppose that the speed at which cars go on the freeway is normally distributed with mean 70 mph and ...

A: Let X be the speed for a randomly selected car and it follows normal distribution with mean of 70 mp...

Q: The accompanying data show the South African population versus expenditure on new construction works...

A: The intercept formula is, a=y¯-bx¯ From the given information, the value of x¯ is 44.6725, value of ...

Q: A survey asks: Which online services have you used in the last month:• Twitter• Facebook• Have used ...

A: Solution: Let A be the event that a person use Twitter and B be the event that a person use Facebook...

Q: (a) n = 4, x = 1 (b) n = 2, x = 2 (c) n = 2, x = 0o

A: Hi, the question has multiple sub-parts and as per the guidelines I am obliged to answer first three...

Q: Find the 38th percentile of the standard normal distribution

A: Answer:  The normal probability distribution is a continuous probability distribution in a real valu...

Q: Suppose that 90% of Narnians are children, that Narnian children have normally distributed BMIs with...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: The number of consumers purchasing a particular item on a given day is found to be uniform over the ...

A: Let X denotes the number of consumers purchasing a particular item on a given day and it follows uni...

Q: Suppose the National Transportation Safety Board (NTSB) wants to examine the safety of compact cars,...

A: Given observation and calculation is shown below Compact cars Mid-size cars Full size cars ...

Q: 8.37 For a chi-square distrib (a) xi o0s. whene = 10; (b) xổ 0s, when e = 6; Xo.005.

A: (a) The value of chi-squared distribution with v=10 degrees of freedom is calculated from the chi-sq...

Q: On average, a textbook author makes 1.5 word-processing errors per page on the first draft of her te...

A: Solution: Let X be number of word-procession errors per 2 pages on the first draft. Since it is a ra...

Q: What is the mean of x, given the function below? f(x): -x/6 °, x > 0

A: The given function is The mean formula is given below:

Q: Assume we have 12 degrees of freedom, what two values must the area in the lower tail be between for...

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any ...

Q: Thirty small communities in Connecticut (population near 10,000 each) gave an average of x = 139.0 r...

A: Since we know population standard deviation, use z-distribution to find z-critical value. https...

Q: You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of...

A: Given: Margin of errorE=0.45 Sample MeanX=64 Standard Deviations=6.2 The z-value corresponding to ar...

Q: How are power, alpha, and type 1 and type 2 error all related?

A: Type 1 error is the error of rejecting a true null hypothesis. This happens when the value of the st...

Q: Suppose the heights of students in a class follows normal distribution. The mean is 60inches and the...

A: Calculate the corresponding Z score as follows: The probability that the data point observed is at ...

Q: You are performing a right-tailed test.If α=.01α=.01, find the critical value, to three decimal plac...

A: Click to see the answer

Q: Suppose 40 percent of the customers at Pizza Palooza order a square pizza, 80 percent order a soft d...

A: Click to see the answer

Q: SAT scores in one state is normally distributed with a mean of 1526 and a standard deviation of 112....

A: Draw the normal curve and shade the area to the left of z=0.0268. Use excel formula "=NORM.S.DIST(0...

Q: Studies show that seven percent of adults live to age of 110. You randomly select five adults. Find ...

A: Obtain the probability that at least two of them will live until age of 110. The probability that at...

Q: Use the normal approximation to the binomial distribution to answer this question. Fourteen percent ...

A: Obtain the probability that four students are absent. The probability that four students are absent ...

Q: A local doctors office recorded the wait times for 70 patients on a saturday afternoon and organized...

A: Total People = 70 Given Histogram

Q: How do you solve. ref W10Q7

A: Given: x=117n=484p=0.5α=0.05

Q: Roll a fair die. Are the events of getting an even number, and a multiple of 3 mutually exclusive?

A: Click to see the answer

Q: What is the probability that x is less than 3, given the function below? -()- -x/3 ҳ2 0 f(x) = le 3 ...

A: From the above information  the given that f(x)=(13)e-x3            , x≥0  

Q: The following table gives the grouped frequency distribution of the crime rates in 25 different town...

A: Mean is a measure of central tendency, mean is defined as  x¯=1n∑i=1nxi fi,where, n is the total num...

Q: Let H be the discrete r.v. that represents the number of heads obtained when a fair coin is flipped ...

A: It is given that, H be the discrete random variable that represents the number of head obtained when...

Q: Which best illustrates the distinction between statistical significance and practical importance? ...

A: Option 3 "In 50,000 births, the new vaccine reduced the incidence of infant mortality in Morrovia si...

Q: A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in old...

A: Find critical values for chi-square distribution: Refer chi-square table to find the critical val...

Q: A recent survey reported that 57​% of​ 18- to​ 29-year-olds in a certain country own tablets. Using ...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: In 2002, the General Social Survey conducted by StatsSA, participants was asked the following questi...

A: Here, the claim of the test is that there is a relationship between death penalty and marijuana beli...

Q: The random variable x is known to be uniformly distributed between 20 and 30. (a) Show the graph of ...

A: Therefore, Expected value of x is given by