At inspection, 40% of built bubble-jet printers are rejected. Calculate the likelihood that the third printer under inspection is the first approved printer.
Q: Consider a population that has an average score of 100 that is normally distributed (standard…
A: Solution-: Given: μ=100,σ=1 Let, X- be the score We want to find P(X<100)=?
Q: A survey found that 73% of a random sample of 8344 American adults approved of cloning endangering…
A:
Q: Physicians at a clinic gave what they thought were drugs to 910910 patients. Although the doctors…
A: Null Hypothesis H0: p=0.47Alt. Hypothesis H1: p>0.47p_cap=0.52p_not=0.47n=910
Q: Neil is a drummer who purchases his drumsticks online. When practicing with the newest pair, he…
A: We have given that.X~N( μ , ?^2 )μ=2.00 , ?=0.19Z-score =( x - μ )/?
Q: A quart of Parker's milk contains a mean of 42 grams of butterfat, with a standard deviation of 2.5…
A:
Q: en the current Center of Disease Analytics statistics, the probability of having the flu in our area…
A: event A= having flup(having the flu in our area)=0.10p(A)=0.10P(A')=1-0.10=0.90event B=report…
Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…
A: The probability value is calculate by means of standard normal variate with the random variable,…
Q: it is claimed that 60% of stats professors like shirts. in a survey of 53 professors, 36 likes them.…
A: Stating the appropriate null and alternative hypotheses:Based on the study, it was found that 60% of…
Q: Find the critical t-value that corresponds to 98% confidence. Assume 29 degrees of freedom.
A: Confidence level (c) = 98% = 0.98Significance level (α) = 1 - 0.98 = 0.02
Q: The beta shoe museum states that 68% of women wear shoes that are too small for their feet. A…
A: Given : Margin of error: ME = 0.02 sample proportion: p̂ = 0.68…
Q: Use the blood Alcohol Concentration chart to determine the likelihood a 140 pound (lbs) female will…
A: Solution: Given data, R = 6e (12.77x)
Q: A 2019 Pew Research poll found that 73% of U.S. adults believe that the economic gap between the…
A: Here, n = 150 and p = 0.73.
Q: Physicians at a clinic gave what they thought were drugs to 900900 patients. Although the doctors…
A: Let p be the population proportion of patients reported an improved condition. The hypothesis that…
Q: It has been calculated that the probability that the average grade in a class of 16 students (taught…
A:
Q: A federal report indicated that 17% of children under age 6 live in poverty in Nevada, an increase…
A: Given data, p=17%=0.17 E=2%=0.02 z-value at 99% confidence is Zc=2.576 n=?
Q: A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…
A: Denote μ as the true mean credit score.
Q: A final exam in Math150 has a mean of 73 with standard deviation 7.8. If 24 students are randomly…
A:
Q: A rare birth defect occurs in approximately 0.5% of all cases in males. If we sample all the males…
A: Given information: The total number of males born in 2016 in a specific region is N = 200,000. It is…
Q: The 90% confidence interval is from to. (Round to three decimal places as needed.)
A: A poll of 1030 adults in a country was conducted by telephone. Of those surveyed, 139 had…
Q: A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…
A: According to a survey, the mean credit score is 700.8 A random sample of 45 high-income…
Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…
A: We are given,μ = 196σ = 22n = 60
Q: Identify the distribution of the standardized version of a normally distributed variable.
A: The distribution of the standardized version of a normally distributed variable have the mean 0 and…
Q: study found that 1.21% of Social Security recipients are too young to vote. If 800 Social Security…
A: Given that A study found that 1.21% of Social Security recipients are too young to vote. P = 0.0121…
Q: A recent study indicated that 24% of women over 55 are widows. A researcher wishes to estimate with…
A:
Q: Choose the appropriate statistical probability notation for the sentence. If a person does not carry…
A: The conditional probability of P(A/B) can be inferred as, the likelihood of event A, whereas event B…
Q: Researchers claimed that women exercise at the same proportion as men do. To test this claim, a…
A: For the given data Perform Z test for two proportions
Q: on the average, it takes Hans solo 45 seconds to check the coordinates and make the jump into…
A: Given that: Population mean, μ=45 Population standard deviation, σ=5
Q: A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…
A: Given information Population mean µ = 707.6 Sample size (n) = 43 Mean x̅ = 718.3 Standard deviation…
Q: A bridge can resist a weight up to 104 metric tons. The mean weight of a car is 4 tons with a…
A: Given information: μ=4, σ2=9x=104*1.102311=114.64 tonsn=2450
Q: Find the critical t-value that corresponds to 50% confidence. Assume 22 degrees of freedom.
A: Confidence level = 0.50 So, significance level α = 1 - 0.50 = 0.50 Degree of freedom, df = 22 We…
Q: of their personal information online if they could. Make a subjective estimate to decide
A: Given : Sample proportion = p̂ = 0.508 Sample size = n = 560 Claim : Most adults would erase all of…
Q: A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…
A: One sample t test: One sample t test is the hypothesis test that is used to test whether the mean of…
Q: In a poisson distributed character, the mean number of events is 6. Find the variance.
A:
Q: A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…
A: The random variable credit scores are normally distributed. The population mean is 707.9. We have to…
Q: The actual probability of a college student getting Covid19 is 60 %. The student health centre's…
A:
Q: A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…
A: Let us consider a population follows a normal distribution Let a sample be taken from that…
Q: A psychologist studied the effect of defendants' likeability and nervousness on willingness to…
A: The data shows the likeable or not likeable and nervous and not nervous.
Q: The Elisa test for the human immunodeficiency virus (HIV) that causes AIDS has been used in the…
A: Conditional probability is defined as the likelihood of an event or outcome occurring, based on the…
Q: Compute the probability of successfully completing the task for an engineer having 24 months of…
A: Given the data of monthly experience of the task is a success or not for 2 engineers as shown below…
Q: A given age group's average height is 53 inches, with a standard variation of 4 inches. Determine…
A:
Q: A new radar device is being considered for a certain missile defense system. The system is checked…
A:
Q: Find the critical value, for a 90% confidence when the sample size is 22
A:
Q: A poll found that 59% of a sample of 1020 teens in a certain large country go online several times…
A: Given that a poll found that 59% of a sample of 1020 teens in a certain large country go online…
At inspection, 40% of built bubble-jet printers are rejected. Calculate the likelihood that the third
printer under inspection is the first approved printer.
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- The 2012 National Survey on Drug Use and Health estimated that 25% of canadians agd 12 or over reported binge drinking in the past month. Find the odds of binge drinkingA credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. Values range from 300 to 850, with a credit score over 700 considered to be a quality credit risk. According to a survey, the mean credit score is 703.8. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 36 high-income individuals and found the sample mean credit score to be 719.8 with a standard deviation of 81.9. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the α=0.05 level of significance.Pregnant women are screened for a birth defect called Down syndrome. Down syndrome babies are mentally and physically challenged. Some mothers choose to abort the fetus when they are certain that their baby will be born with the syndrome. The most common screening is maternal serum screening, a blood test that looks for markers in the blood to indicate whether the birth defect may occur. The false-positive and false-negative rates vary according to the age of the mother. Mother’s Age False-Positive Rate False-Negative RateUnder 30 0.040 0.37630-34 0.082 0.29035-37 0.178 0.269Over 38 0.343 0.029 The probability that a baby has Down syndrome is primarily a function of the mother’s age. The probabilities are listed here. Age Probability of Down Syndrome25 1/130030 1/90035 1/35040 1/10045 1/2549 1/12 For each of the age 25, 30, 35, 40, 45 and 49, determine the probability of Down syndrome if the maternity serum screening produces a…
- A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. Values range from 300 to 850, with a credit score over 700 considered to be a quality credit risk. According to a survey, the mean credit score is 700.1. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 45 high-income individuals and found the sample mean credit score to be 713.4 with a standard deviation of 84.9. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the a = 0.05 level of significance. State the null and alternative hypotheses. Ho: H (Type integers or decimals. Do not round.) Identify the t-statistic. to = (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.) e%3D Make a conclusion regarding the hypothesis. the null hypothesis. There…A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. Values range from 300 to 850, with a credit score over 700 considered to be a quality credit risk. According to a survey, the mean credit score is 704.5. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 36 high-income individuals and found the sample mean credit score to be 714.9 with a standard deviation of 81.7. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the a = 0.05 level of significance. State the null and alternative hypotheses. Ho: H V H1: H V (Type integers or decimals. Do not round.) Identify the t-statistic. to (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.) Make a conclusion regarding the hypothesis. V the null hypothesis.…A psychologist believes that 65% of male drivers when lost continue to drive hoping to find the location they seek rather than ask directions. To examine this belief, he took a random sample of 350 male drivers and asked each what they did when lost. Assume that the sampling distribution of the sample proportion of male drivers who continue driving is at least approximately normal. If the belief is true, determine the probability that less than 60% said they continue driving. Show your work below
- A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. Values range from 300 to 850, with a credit score over 700 considered to be a quality credit risk. According to a survey, the mean credit score is 702.4. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 41 high-income individuals and found the sample mean credit score to be 721.3 with a standard deviation of 80.9. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the a= 0.05 level of significance. State the null and alternative hypotheses. Ho H H₁ H (Type integers or decimals. Do not round.) Identify the t-statistic. to = (Round to two decimal places as needed.) Identify the P-value. P-value= (Round to three decimal places as needed.) Make a conclusion regarding the hypothesis. the null hypothesis. There…A recent survey of 1,000 people found that 90% of Americans support background checks for purchasing guns. Construct a 95 % confidence interval for the population proportion.A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. Values range from 300 to 850, with a credit score over 700 considered to be a quality credit risk. According to a survey, the mean credit score is 704.9. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 33 high-income individuals and found the sample mean credit score to be 717.9 with a standard deviation of 83.9. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the g = 0.05 level of significance. State the null and alternative hypotheses. Ho: µ 704.9 H1: µ > 704.9 (Type integers or decimals. Do not round.) Identify the t-statistic, to = (Round to two decimal places as needed.)
- A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. Values range from 300 to 850, with a credit score over 700 considered to be a quality credit risk. According to a survey, the mean credit score is 708.5. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 43 high-income individuals and found the sample mean credit score to be 723.3 with a standard deviation of 84.6. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the a = 0.05 level of significance. State the null and alternative hypotheses. Ho: H (Type integers or decimals. Do not round.) Identify the t-statistic. to = (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.) Make a conclusion regarding the hypothesis. the null hypothesis. There…A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. Values range from 300 to 850, with a credit score over 700 considered to be a quality credit risk. According to a survey, the mean credit score is 705.8. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 37 high-income individuals and found the sample mean credit score to be 721.3 with a standard deviation of 81.9. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the a = 0.05 level of significance. State the null and alternative hypotheses. Họ: H H1: H (Type integers or decimals. Do not round.)A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. Values range from 300 to 850, with a credit score over 700 considered to be a quality credit risk. According to a survey, the mean credit score is 709.6. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 39 high-income individuals and found the sample mean credit score to be 724.1 with a standard deviation of 81.5. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the g = 0.05 level of significance. State the null and alternative hypotheses. Ho: H = 709.6 H1: µ > 709.6 (Type integers or decimals. Do not round.) Identify the t-statistic. tn = (Round to two decimal places as needed.)
