11/27/23

business statistics

A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults, asked those adults about their party affiliation (Democrat, Republican or none) and their opinion of... more
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11/27/23

business statistics

Test the claim that the mean GPA of night students is significantly different than the mean GPA of day students at the 0.2 significance level.The null and alternative hypothesis would... more
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11/27/23

business statistics

Test the claim that the proportion of men who own cats is smaller than the proportion of women who own cats at the .005 significance level. The null and alternative hypothesis would... more
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11/25/23

I need help please
 A swimming pool is being drained at a constant rate of 3 inches (depth of the water) per hour. The depth of the water after 5 hours is 32 inches. Write the equation for this function in point... more
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11/23/23

Statistics Homework

For a confidence level of 98% with a sample size of 20, find the critical t value [t_(alpha/2)]. (Report answer in 3 decimal places)
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11/23/23

Find probability that a single randomly selected value is greater than 146.1. P(X > 146.1) and Find probability that a sample of size is randomly selected with a mean greater than 146.1. P(M > 146.1)
Mean=141.2 and St. Deviation=27.6. Sample size n=116.
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11/22/23

Test Statistic using Z-score
From previous studies, it is concluded that 73% of people mind if others smoke near a building entrance. A researcher claims it has decreased and decides to survey 100 adults. Test the researcher's... more
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11/22/23

Let z be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.) T. P(0 ≤ z ≤ 1.61) =
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11/21/23

Algebra word problem
A truck that hauls water is capable of carrying a maximum of 3000 lb. Water weighs 8.3454 lb gal, and the plastic tank on the truck that holds water weighs 91 lb. What is the maximum amount of... more
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11/21/23

Algebra word problem
Last year, 250 people attended the year end celebration party. This year, the number of party- goers has skyrocketed. If the cost is 75 per 20 people, and your new budget is $1500, how many new... more
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11/21/23

Math Date Problems

Wacky Wanda Witch can hardly wait for the harvest moon to complete her weird yet wonderful potion. The harvest moon will be on September 22nd this year. If today is one week before 2 days after 3... more
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11/18/23

Help with an Argumentative essay
Argumentative essayTopic: Should immigrants to the United States be required to learn English?All required essay components (introduction paragraph, three body paragraphs, conclusion paragraph, and... more
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11/17/23

or There is a line that includes the point ( – 6, – 4) and has a slope of – 1/ 7 . What is its equation in point-slope form?
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11/17/23

What is the answer to this question?
The difference of twice a number and 5 is at most −16..
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11/16/23

in water the ratio of the wight of oxygen to the weight of hydrogen is approximately 8;1, how many ounces of hydrogen are in 1lb of water

in water the ratio of the wight of oxygen to the weight of hydrogen is approximately 8;1, how many ounces of hydrogen are in 1lb of water
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11/16/23

What is the probability that the sample proportion of households spending more than $125 a week is between 0.24 and 0.48?
A Food Marketing Institute found that 27% of households spend more than $125 a week on groceries. Assume the population proportion is 0.27 and a simple random sample of 89 households is selected... more
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11/16/23

business statistics

You wish to test the following claim (HaHa) at a significance level of α=0.001α=0.001.      Ho:p1=p2Ho:p1=p2       Ha:p1≠p2Ha:p1≠p2 You obtain 115 successes in a sample of size n1=375n1=375 from... more
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11/16/23

business statistics

Test the claim that the mean GPA of night students is larger than the mean GPA of day students at the 0.025 significance level.The null and alternative hypothesis would... more
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11/15/23

A youth group is planning a trip to a local amusement park. They are taking a van which holds 10 people. It will cost $25 for parking and tickets to enter the park are $18 per person.
Identify the independent and dependent variables for this situation.
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11/15/23

Probabilties math
Conditional Probability Jamal has 12 marbles as shown in the diagram below. Each marble is either blue or white. In addition, each marble is labeled with a number between 1 and... more
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11/15/23

Mr. Simmons figures he can paint his house in 5 days. If his son helps, together they can paint it in 2 days. How long will it take his son to paint the house if he works alone?
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11/15/23

find the perimiter
Find the perimeter of the triangular hedge.
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11/13/23

Linear Regression
Let y-hat represent the profit (or loss) for a certain company x years after 1975. Based on the data shown below, a statistician calculates a linear model y^= -0.71x + 14.39. Use the model to... more
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11/13/23

Can you help me with this question
A genetic experiment involving peas yielded one sample of offspring consisting of 433 green peas and 166 yellow peas. Use a 0.01 significance level to test the claim that under the same​... more
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11/13/23

What is the test statistic? What is the p-score?
Durable press" cotton fabrics are treated to improve their recovery from wrinkles after washing. "Wrinkle recovery angle" measures how well a fabric recovers from wrinkles. Higher is better. Here... more
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