Find the value of k.

Q: The following data represents the ages of 40 employees in the Ministry of Electricity, which is…

A: Given that  The data of 40 employees are 19, 31, 22, 22, 27, 28, 28, 28, 26, 25, 26, 25, 26,…

Q: Which one can he use to find the areas under the standard normal curve? a. graph b. z-values c.…

A: Task is to find the areas under the standard normal curve.

Q: What type of graph is this, and is it displaying Ordinal, Interval, Nominal, or Ratio Data

A: The objective is to identify the type of graph and the scale of data being used.

Q: You measure 23 dogs' weights, and find they have a mean weight of 68 ounces. Assume the population…

A:

Q: A batch of loaves is baked. The weight of the loaves is normally distributed with a mean of 800 g…

A:

Q: Consider a regression study involving a dependent variable y, a quanttative independent variabe nd s…

A:

Q: ocate the following percentile under the normal curve and find its corresponding t-value. Sketch and…

A: The objective is to locate the percentile and find the corresponding t-value. Percentile is the…

Q: The probability of getting exactly x success is n trails is denoted by, P(X=x)=

A: Solution-: The probability of getting exactly x success is n trails is denoted by, P(X=x)=?

Q: Question A political candidate has asked you to conduct a poll to determine what percentage of…

A: Given that   Margin of error n=0.07 99% confidence interval.

Q: Suppose Z follows the standard normal distribution. Calculate the following probabilities using the…

A: We have to find given probability....

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

A:

Q: A researcher is interested to see if SAT scores correlate with university GPA.    SAT GPA 1250…

A: Introduction: It is required to solve the problem using SPSS.

Q: 2. The following values are the scores of 10 Grade 11 Statistics and Probability students in their…

A: Expected value : The anticipated value of a sum of numerous random variables equals the sum of their…

Q: (a) Calculate the missing normal scores (the first two and the last two). (b) Now construct a q-q…

A:

Q: A company employs 79 people. Choose a simple random sample of five to survey. a. In the table of…

A: a) From a table of random numbers we get 61424 20419 86546 b) In groups of two it will be,  61 42 42…

Q: 2. Approximately 6% of the male population is color-blind. If a random sample of 250 male adults is…

A: Given that  n= 250 , p=6%=0.6 , q=1-p=1-0.06=0.94

Q: The average amount of calories from a hamburger serves in a restauranr is 220 per order with a…

A: Given that  μ = 220 , ? = 30 , n =20

Q: f. Find the probability that the time will be between 17 and 40 minutes. g. Find the 45th…

A:

Q: d. The probability that a person will be born between weeks 18 and 39 is P(18 39) = f. P(x > 8 | x<…

A: Note: Hey, since there are multiple subparts are posted, we will answer first three subparts for…

Q: The following data shows the population of a country by age groups from 13 to 73 years. Population…

A: The cumulative frequency (both in ascending order and descending order) is to be obtained for the…

Q: The expected value and standard error of the proportion of groceries thrown out by your sample…

A: Here, proportion is 12% , ( 0.12). Sample is 540. We will use standard error for proportion.

Q: The following arc the indices (base 1988) : Ycar: 1988 1989 1990 1991 | 1992| 1993 1994 | 1995 1996|…

A:

Q: ) Compute the predictive value positive and predictive

A: Positive Predictive value: Suppose a serum-estradiol level of 15+ pg/mL is proposed as a screening…

Q: The bookstore at IRSC would like to estimate the proportion of students who prefer electronic…

A: For the given data Find 96% Confidence interval

Q: a). What is the point estimate of the true proportion of passengers who prefer aisle seats? b).…

A: Here use interval estimate of population proportion

Q: 4) Compare our obtpined z-score with the critical z-score and determine whether we should reject the…

A: The research institute of America conducted a study that the mean number hours people spend in their…

Q: Colored Wheel A survey on 200 Senior High School learners on how much time they read per week has a…

A: The random variable X follows normal distribution. We have to find the margin of error and sample…

Q: c) to the left of z = -2.46 and to the right of z = 1.72. Gaussian Curve

A:

Q: The following was done in an experiment to determine if noise (from window-type airconditioners) in…

A: The experiment is conducted to check if noise in classroom affects the performance of students in…

Q: Suppose data collected by observers at randomly selected intersections across the country revealed…

A:

Q: Independent Activity 1: A random sample of size 70 has a standard deviation of 15. What is the…

A: In question, Given that a random sample of size 70 has a standard deviation of 15. Then we'll find…

Q: Voting is done in a class consisting of 30 students to determine the study tour destination. One…

A: Given that, Voting is done in a class consisting of 30 students to determine the study tour…

Q: If a random variable X is distributed as X ∼ N(100,49), what is P(X < 105)?  Please refer to a…

A: The random variable X follows normal distribution. X~N(μ,σ2) We have to find the probability of X…

Q: (a) Identify the null hypothesis and alternative hypothesis. O A. Ho: H#3.8 H:u= 3.8 O B. Ho: u= 3.9…

A:

Q: to.995 at v= 20

A:

Q: A researcher wants to see if the amount of water a person drinks relates to the temperature outside.…

A: Correlation and Scatterplot A Correlation is a statistical tool that describes how closely two…

Q: A random sample of size n = 200 yielded p = 0.20. a. Is the sample size large enough to use the…

A:

Q: Jac tosses an unbiased coin. If the coin lands with head up on each toss, he wins Php50. However, if…

A: Jac wins 50 hence The event of wining is +50 Jac loses 60 hence The event of losing is -60

Q: The CEO of a large electric utility claims that 80 percent of his 1,000,000 customers are very…

A:

Q: pls answer D thank u

A: Given The population has following elements: 6, 9, 12, 15, 18 and 21 Samples of size 5 are to be…

Q: The degrees-of-freedom for a chi-square test for c cross-tab is: O 18 O 12 10

A: In Chi-square test 3 by 6 cross-tab is given

Q: 6. The amount of kerosene, in thousands of liters, in a tank at the be ginning of any day is a…

A: All are different questions I am solving first one

Q: How many  different ways can 5 out of 8 different shirts, 4 out of 10 different pairs of slacks, and…

A: We have given that 8 different shirts, 10 different pairs of slacks and 6 ties.     Combination…

Q: We are given a deck of 52 playing cards. We pick two cards from the deck uniformly at random, one…

A: Given that - We are given a deck of 52 playing cards.  We pick two cards from the deck uniformly at…

Q: figure to the nght, hich shows the percentages of adults from several countries who favor building…

A: The survey included the random sample 1125 adults from country A, 1003 adults from country B, 1019…

Q: 4 2. 4. 2. 3. 3. 2.

A: The data is shown below x y 2 5 3 2 3 4 2 4 2 3 4 1 3 4 2 2

Q: 17. Approximately 10% of all people are left-handed. Suppose that you randomly ask 8 people "are you…

A: Given that  n=8 , p=10%=0.1 , q=1-p=1-0.1=0.9 X~Binomial(n=8,p=0.1) X= Number of left handed…

Q: On the first quarterly examination in Statistics and Probability of the 100 students of Grade 11…

A:

Q: (iii) Jan achieved a score of 70 on a class test for which the mean score and the standard deviation…

A: For the given data Find ( a) z score =? ( b ) score on the second test =?

Q: All possible random samples = c. List all the possible samples and the corresponding mean. SAMPLE…

A: Here given  , Score of 6 students