Given that the mean score is 83 and the standard deviation is 6. What z-score corresponds to the score of 75?

Q: Suppose a random sample of 10 fish are selected from a lake and their sample mean weight is 3.5 kg.…

A: Given that  Sample Mean \bar XXˉ = 3.53.5 Population Standard Deviation (\sigma)(σ) = 11…

Q: A life insurance salesman sells on the average 3 life insurance policies per week. Use Poisson's law…

A: Solution-: We have given that a life insurance salesman sells on average 3 life insurance policies…

Q: What is the rate compounded semi-annually that results in ₱625 accumulating to ₱1100 in 42 months?…

A: Solution-: We have, PV=625, FV=1100, n=42 months=7 semi-annual We want to find, the rate compounded…

Q: In how many ways can one choose three cards in succession from a pack of 52 cards with replacement?

A:

Q: Suppose that a students group on campus wants to estimate the average GPA of students at Mercy. They…

A:

Q: The frequency distribution which is visualized in the form of an overlapping bar graph is also known…

A: We have given that the statement about to the graph. Here, need to find out the correct frequency…

Q: ttersson 70 77 Bo Van Pelt 67 76 Ernie Els 71 76 Cameron Beckman 77 69

A: player First Round Final Round Michael Letzig 74 72 Scott Verplank 71 75 D.A. Points 69 71…

Q: a) Find the PMF Px(x). b) If p = 0.9, how large should N be to ensure that with probability 0.99 at…

A: The random variable X:number of copies received correctly by the end user can be modeled as a…

Q: puppies and recorded how many ounces of food they ate during a given time period, He kept track of…

A:

Q: A large North Texas company bought a new business unit to deliver arcels between its 15 North Texas…

A: Given that  Sample size n =8717 Favorable cases x =69

Q: Test the claim that the mean GPA of night students is significantly different than 2.1 at the 0.2…

A: Solution

Q: What is the t-value for a 95% confidence interval given that the sample size is 16? Write the exact…

A: Given: confidence level =95%  Sample size n=16  Then degree of freedom for t-test is =n-1  To find…

Q: Consider a binomial experiment with n trials for which the probability of a success on any given…

A:

Q: Sometimes a month, managers of 1,200 retail stores place replenishment orders with the parent…

A:

Q: The accompanying table gives a recent estimate​ (in thousands) of the smoking status among persons…

A:

Q: The equation of a regression line between two variables x and y and the were computed as shown here.…

A: Given

Q: The following frequency table shows the number of fires per month in a city. Complete the table…

A: Given the frequency distribution and by using this we calculate mean and standard deviation.

Q: Determine the minimum sample size required when you want to be 99% confident that the sample mean is…

A:

Q: Assume z is a standard normal random variable. Then P(–1.96 ≤ z ≤ –1.2) equals _____.   a. 0.8599…

A:

Q: ] In a sociological survey, a 1-in-50 systematic sample is drawn from city tax records to determine…

A:

Q: calculate the test statistic

A: here given table for calculate chi-square test statistic

Q: According to a report done by S& J Power, the mean lifetime of the light bulbs it manufactures is 45…

A: Given: Sample size, n=90 Sample mean, x¯=44Population sd, σ=7α=0.05

Q: e following data (3, 6, 9, 12, 14, 16) , the mean equal

A: The data is given as below 3,6,9,12,14,16

Q: Low Price Medium price High price High quality 60 60 80 Low quality 40 40 Using table 5 above 1)…

A: We have given that  Total number of products = 300 Total number of low price products = 100 Total…

Q: . Suppose two classes achieved the following grades on a math test, Class A: 64, 70, 73, 77, 85,…

A:

Q: The amount of money seven people spent on prescription medication in a year are as follows: $600…

A:

Q: 5 examples of type II error

A: Errors in Testing of Hypothesis: For the testing of the Hypothesis, various tests are performed.…

Q: classify the 2 given samples as independent or dependent sample 1: the gas mileage for 31 trucks…

A: In this case, we need to identify the 2 samples are independent or dependent.

Q: 3. A company institutes conducts an exercise break for its workers to see if this will improve, as…

A:

Q: Non parametic test show that we will accept or reject the hypothesis. Assume best alpha value test…

A: From the given information, there are 4 groups. To compare more than two groups of the population,…

Q: Coffee Price Gasoline Price 2$ Month Ib gal Jan. 4.58 3.93 Feb. 4.16 3.65 Mar. 5.72 3.27 Apr. May…

A: The Monthly price is given Coffee Price Gasoline Price 4.58 3.93 4.16 3.65 5.72 3.27…

Q: Express the confidence interval 88.5%±8.1%88.5%±8.1% in interval form. Express the answer in…

A: Given that

Q: (a) Let X be the number of times you swim in a given week when you have visited the gym on 4…

A: You go to the ARC gym 4 times a week, each time you visit there is a 0.85 probability that you will…

Q: The number of hours 10 students spent studying for a test and their scores on that test are shown in…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Set up the regression equation and calculate the predicted satisfaction with major for someone with…

A:

Q: ng is(are) TRUE about pairwise mean comparison? n are declared different by Scheffe's test will also…

A: *Answer:

Q: 1. O Score paling 466/ Most score 466 2. O Score paling sedikit 316,5/ Score at least 316.5 3. O…

A: Given that.   X~N( μ , ?^2 )   μ=200     , ?=50   Z-score =( x - μ )/?

Q: A study was conducted to explore the consequences of self-leadership on job satisfaction,…

A:

Q: The manager of the city pool has scheduled extra lifeguards to be on staff for Saturdays. However,…

A: The categorical variable is day. We have to test whether there is a difference in the number of…

Q: In a one-tailed test, in which critical values below will the computed z of 2.312 falls in the…

A: It is given that Computed value of Z = 2.312

Q: Suppose P(A)=0.4, P(B)=0.7 and P(A U B) =0.9 then P(An B) is 1. O 0.2 2. O 0.1 3. O 0.3 4. O 0.4

A:

Q: You are conducting a multinomial hypothesis test for the claim that the 4 categories occur with the…

A: Given that

Q: the resistance of the control circuits in a machine are lower when the machine motor is running. To…

A:

Q: If the ski lift manager chooses to use the p-value approach for his hypothesis test, what does he…

A: Test is that whether the average has increased in recent years.

Q: An economist wondered if people who go to the movies on weekdays go more or less often on Fridays…

A: Given that  Sample size n=50 Favorable cases x =14 Sample proportion p^=x/n  =14/50 =0.28

Q: Consider a sample of 8 hypertensive smoking adults. Their serum cholesterol level readings are as…

A:

Q: In a survey of 2861 adults, 1416 say they have started paying bills online in the last year.…

A: Favourable cases(X)=1416 Sample size(n)=2861 The objective is to find out a 99% CI for the pop.…

Q: F6. Suppose that 25 percent of women and 22 percent of men would answer yes to a particular…

A: