Giving a test to a group of students, the grades and gender are summarized below A B с 7 2 12 Male Female 3 18 20 If one student is chosen at random, find the probability that the student did NOT get a(n) "A" Probability (Please enter a reduced fraction.) Submit Question

Q: A telephone survey of 100 randomly selected US adults found that 41% of them say they believe in…

A: Hypothesis Test: Since we are asked to determine whether there is evidence that fewer than half of…

Q: il in the P(X-x) values to give a legitimate probability distribution for the discrete random…

A: Let X denotes the random variable x.                P(X=x) 1.                0.25 3.…

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Q: Given the following list of data, what is the five-number summary? 4, 5, 6, 6, 7, 9, 10, 10, 10, 11,…

A: The data and the data arrange in increasing order are 4, 5, 6, 6, 7, 9, 10, 10, 10, 11, 12

Q: Two samples are taken with the following sample means, standard deviations, and sample sizes. We no…

A: Given: x1 =20s1=3n1=50x2 =27s2=2n2=65

Q: In a random sample of 100 trout, the average weight is 10 pounds, with standard deviation (s) = 0.6,…

A: Answer: From the given data, Sample size(n) = 100 mean (x¯) = 10 standard deviation(s) = 0.6

Q: In the state of Missouri, there are 229 eight year olds diagnosed with ASD out of 18,450 eight year…

A: x1 = 229 n1 =18450 x2 = 47 n2 = 2202 Confidence  level  95% p1 = x1/n1 = 229 / 18450 = 0.01241 p2 =…

Q: Identify the type I error and the type II error that corresponds to the given hypothesis. The…

A: Answer  Given  The proportion of people who write with their left hand is equal to 0.34. Type1 error…

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A:

Q: Going to work: A news report stated that the mean distance that commuters in the United States…

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Q: ls give me a general discussion and a conclusion for this

A: This dataset displays the five-year average temperature change in Western European nations. Every…

Q: (f) Would it be unusual if less than 38% of the sampled teenagers owned smartphones? It (Choose one)…

A: Suppose p is the true population proportion of teenagers aged 12-17 who own smartphones.

Q: Kori categorized her spending for this month into four categories: Rent, Food, Fun, and Other. The…

A: Total spent in this month=$2700  The percents she spent in each category are pictured here. Rent =…

Q: Test the given claim. Assume that a simple random sample is selected from a normally distributed…

A: The question is about hypo. testing Given : Std. deviation old production method ( σ ) = 32.2 ft…

Q: Identify the null and alternative hypotheses. b. Identify the test statistic. c. Identify the​…

A: Let μ be the population mean volume of cans of regular Coke. Given that, Sample size (n) = 36Sample…

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A: From the provided information, 48% of adults believe that the overall state of moral value is poor…

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A: Rent $528 Food $422 Fun $317 Other $633

Q: The life of light bulbs is distributed normally. the standard deviation of the lifetime is 29 hours…

A: Answer: From the given data, mean(μ) = 590 standard deviation(σ) = 29 X = 608

Q: Giving a test to a group of students, the grades and gender are summarized below A B C Male 18 4 15…

A: A B C Male 18 4 15 Female 11 14 8

Q: Nursing Majors Non-Nursing Major 651 1294 1186 2480 Males Females 839 Total 1490 Total 1945 2025…

A:

Q: 1. P(0<z<1.44) 2. P(-2.81 <z<0).

A: 1)P(0&lt;z&lt;1.44)

Q: For a Chi-Squared Goodness of Fit Test about a uniform distribution, complete the table. Round to…

A: Answer:- Given data table is, Categories  observed frequency  expected frequency  1 31   2 35…

Q: 1. 2. 3. 4. Enter the data into an Excel spreadsheet as two columns. The first column is age in…

A: Comment: As per the our company guidelines we are supposed to answer only one question. Kindly…

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Q: A random sample of 861 births included 435 boys. Use a 0.05 significance level to test the claim…

A: We have given thatn = 861x = 435p̂ = x/n = 435/861 = 0.5052Significance level (α) = 0.05

Q: In a recent court case it was found that during a period of 11 years 856 people were selected for…

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Q: Arrange the steps to solve the recurrence relation an= an-1+6an - 2 for n ≥ 2 together with the…

A: Arrange the steps to solve the recurrence relation an=an-1+6an-2 for n ≥2 together with the initial…

Q: In a simple random sample of 170 households, the sample mean number of personal computers was 1.55.…

A: Given that the sample size is n=170, sample mean x=1.5 and population standard deviation σ=0.51 ,…

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A: The given claim is that the sample is from a population with a mean less than 1000 hic. Significance…

Q: Find the critical t-value that corresponds to 85% confidence.Assume 34 degrees of freedom (round to…

A: Answer: From the given data, 85% confidence interval, degrees of freedom (df) = n-1 =34 (given)

Q: The mean weight of male nurses working at a local hospital is at least 170 lbs. Express the null and…

A: The mean weight of male nurses working at a local hospital is at least 170 lbs.

Q: A report statesb that 33% of home owners had a vegetable garden. how large a sample is needed to…

A: p=33%=0.33, E=5%=0.05

Q: A high school wants to know how the student body feels about the quality of th They use an…

A: Sampling techniques :  Simple random :  Randomly select objects(n) from population (N) to make…

Q: 5. Show that sin (60°+x)+sin (60°-x)=√3 cos x. 6. Find all solutions of the equations: (i) 2…

A: Hi thank  you for posting  this question,  since you have posted  multiple question we have solve…

Q: 1. In a completely randomized experimental design, 11 experimental units were used for each of the 3…

A: SS treatment=1500, 11 experimental units were used for each of the 3 treatment k=3, n=11

Q: A smart phone manufacturer is interested in constructing a 90% confidence interval for the…

A: n=1594 x=81 so, Sample proportion : p^=811594=0.0508

Q: State the number of degrees of freedom available for determining the​ within-samples variation.

A: The sample sizes to be used for each level are 25, 25, 26, and 23 respectively.

Q: Provide and interpret a 93% confidence interval for the variable Savings Edit View Insert Format…

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A: The statistical test known as the ANOVA (analysis of variance) is frequently used to examine the…

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A: We have given that µ ≥ 327  Hence  The null and alternative hypothesis are H0 : µ = 1239H1: µ  &lt;…

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Q: s is more than 30 minutes, the accompanying Excel display is obtained. Test the given claim by using…

A: Population mean μ =30

Q: the 99 confidence level. e null and alternative hypothesis in symbols would be: Ho: p = 0.7 H₁ :p…

A: Sample size n =130 Favorable cases x =77

Q: Assume that a sample is used to estimate a population proportion (P). Find the margin of error…

A: Answer: From the given data, Sample size(n) = 339 X = 168 95% confidence interval,

Q: 9. You want to know if college students have more stress in their lives than the general population…

A: Sample size n =25 Sample mean=13.11 Standard deviation =3.89

Q: Describe type I and type II errors for a hypothesis test of the indicated claim. A police station…

A: Answer:- Given claim is, " A police station publicizes that at least 60% of applicants become police…

Q: A study of the time spent shopping in a particular supermarket showed an approximately uniform…

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Q: a) In how many ways can 6 climbers be chosen for an expedition group? (The remaining 5 climbers will…

A: As per guidelines i have calculated 3 subparts plz repost for remaining. here  Consider a…