After three exams Denny has a mean score of 74 with only one exam remaining in the class what is the minimum score she will need on that exam to have an overall of an 80

Q: To investigate the relation between hair color and eye color, the hair color and eye color of 5383…

A: Note: It has not been specified which variable is X and which is Y. So, it is assumed that Eye color…

Q: In a hotel, two dishes- vegetables and non-vegetables are demanded. 80% of its male customers order…

A:

Q: From the following data compute the quantity index number for 1998 ing (i) Paasche's formula (ii)…

A:

Q: The number of hits to a website follows a Poisson process. Hits occur at the rate of 1.1 per minute…

A: A discrete random variable X is said to follow Poisson distribution with parameter λ, if its…

Q: Answer 4 5 6 handwritten

A: Hypothesis is an assumption about the nature of a population that needs to be tested.

Q: EP-T method in probability distribution: what is it? Suppose that she estimates that there is a 95%…

A: Given Suppose that she estimates that there is a 95% chance that first-year sales will exceed 10,000…

Q: À researcher wishes to test the idea that shoe size and mathematical ability are correlated;, that…

A: The problem is the "entire town." This includes infants, children, as well as adults. Clearly small…

Q: With a o.95 probability, the margin of error is approximately O a.0.564 O b.0.473 O C.1.96 Od1.645

A:

Q: A forester studying the effects of fertilization on certain pine forests in the Southeast is…

A: Probability : Probability is a field of mathematics that deals with numerical descriptions of how…

Q: can you  plan a hypothesis test  with these information on the table (T-Test), concerning  Knowledge…

A: The  types of t-tests are as follows: t-test for single mean t-test for difference of means t-test…

Q: QUESTION 3 The margin of error indicates how accurate a point estimate is in estimating a population…

A: Confidence interval is an interval such that the probability of the unknown parameter to be included…

Q: X. Given P(A) = 0.2, P(B) = 0.7, P(A | B) = 0.3, do the following. %3D %3D %3D (a) Compute P(A and…

A: Here use basic probability rule

Q: The scatter plot is used to examine the relationships between different functions in the statistical…

A: Solution: Scatter plot: Scatter plot is a graphical technique or method of identifying the linear…

Q: Zahra is a company specializing in high-end cosmetics. Its signature nail polish color is Soft…

A: Population is the whole subject under the study. Sample is the finite subset of the population. It…

Q: From a continuous uniform distribution, X - Unif[a, b], we are given the following set of data: 5,…

A:

Q: When they send out theirfundraising letter​, a philanthropic organization typically gets a return…

A: According to central limit theorem, as sample size increases the sampling distribution of the sample…

Q: What is the mean monthly rainfall in mm? O 1422.79 O 1245.30 O 1756.44 612.78 1245.30

A: The formula to find monthly rainfall is mean daily rain*days per month.

Q: If S = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9} and A = {(0, 2, 4, 6, 8), B = {1, 3, 5, 7, 9), C= (2, 3, 4,…

A:

Q: QUESTION 4 A confidence interval is a range of numerical values that one hopes the population…

A: Given that  A confidence interval is a range of numerical values that one hopes the population…

Q: Consider the following. n = 25 X= 22.6 Ho: H 19 Ha: H> 19 O = 20 If the test is done at a o.05 level…

A:

Q: 3. For two independent events, A and B, P(A)=D0.1 and P(B)-D0.5. Enter your probabilities as…

A:

Q: chemical manufacturer is concerned about the degree of impurity in the raw material shipments…

A: Given that ; Sample size (n) = 10 S = 2.36 At 95 % confidence interval  By using population variance…

Q: At the local fish hatchery we take a random sample of 21 trout from one of the holding pens.  The…

A:

Q: A new rocket-launching system is being considered for deployment of small, short-range rockets. The…

A:

Q: (c) The P-value is

A: here from given information  claim: two samples given comes from populations with same mean

Q: In a t-distribution, what is the area under the curve that is to the right of t=2.048 and with…

A: Given,degrees of freedom(df)=28and t=2.048

Q: 2. A graphite furnace atomic absorption spectrophotometer (AAS) was used to determine the arsenic…

A: Scatter plot is the graphical representation of the relationship between two variables of a…

Q: The random variable x is observed twice. The observations are independent. What is the probability…

A: Here use given probability distribution and basic of sampling distribution

Q: • where not met in 200 iterations Listed below are paired data consisting of amounts spent on…

A:

Q: Describe the histograms for the leaf length and the leaf width

A: Histogram is a graphical form that represent the categorical data. It is type of bar chart, since…

Q: The following are historical data on staff salaries (dollars per pupil) for 30 schools sampled in…

A:

Q: If Tectronic is asked for a second presentation, what is the probability that the company will get…

A: here define events company get order   = O asking for second presentation  = S p(O) = 0.60 p(O') =…

Q: critical value 0.959

A: Given that  Hypothesized Population Mean (\mu)(μ) = 118118 Population Standard Deviation…

Q: A student answered a 5-item multiple-choice test. Let be the number of correct answers on the test.…

A: NOTE-AS PER POLICY I HAVE CALCULATED FIRST 3 SUBPARTS ONLY   A student answered a 5-item…

Q: class consisting of 50 students had their grades handed out by their professor. Nine of the…

A: Given that  Frequency distribution table  X 1.00 1.25 1.50 1.75 Frequency  9 8 12 21

Q: One bag contains 4 white balls and 2 black balls; another contains 3 white balls and 5 black. If one…

A:

Q: the first card is a club and the second is a red card?

A: Here total cards in deck = 52 Here use basic probability  Probability = # Favorable outcome/# total…

Q: Use the fact that on each​ day, it could either be sunny or​ rainy, and that each day is equally…

A:

Q: From the following data compute the quantity index number for 1998 musine (i) Paasche's formula (ii)…

A:

Q: Okay! This is our last wrap up. You will be able to help Harvey all hroughout this Module 5 in…

A: 2. Given that the population units are X 1.47 1.58 1.67 1.69 1.51 Consider the…

Q: People with O-negative blood are called "universal donors" because O- negative blood can be given to…

A: It is given that the probability of people have type O-negative blood is p=0.06.

Q: For the following data set (58, 32, 22, 39, 47, 77} , the width of each class in the frequency table…

A: we know that the width of the class is equal to the difference between upper limit and lower limit.…

Q: The number of needed repairs while under warranty for a Sure Cut lawnmower has a population…

A: for the histogram for population shown in graph , it is right skewed.

Q: Read the table and answer the question. Favorite Game Soccer Basketball Total Boys 34 106 Girls 28…

A:

Q: Q2. Consider the following table as an example of a possible data set of the people in Bangladesh.…

A: For the given data Perform Chi square test

Q: Construct a 99% confidence interval estimate of the difference u, - Hi, where u, is the mean age of…

A: In testing of hypothesis, Level of Significance is the probability of rejecting a null hypothesis…

Q: For the following data (72, 65, 76, 78, 40, 77, 58, 77, 65, 77, 65, 75, 66) (1) construct a stem and…

A: For the given data Construct stem and leaf plot median =? Q1 =? Q3 =?

Q: Construct a frequency table for the follwing data. The example of the table is shown below.

A: Frequency distribution is used to tabulate the group of individual observations. Each frequency…

Q: 3. By using the appendix tables, test the following hypotheses by estimating p-value. Use a = 0.05.|…

A: The random variable X follows Chi-Square distribution. We have to test the hypotheses for the given…

Q: Suppose a survey is conducted to a group of people of what brand of covid19 vaccines they are…

A: We have answer the following questions from given Venn diagram