3-A randomly selected dice (2 die) is been tested to be fair (all sides are equally likely to come up on a roll). Use a=0.05 to test the claim if samples of rolls came up with same frequency. 4 7 8 82 88 96 104 90 70

Q: a. If a pilot is randomly selected, find the probability that his weight is between 120 Ib and 171…

A: a. Let x be the weight of pilots which follows normal distribution with mean 130 and standard…

Q: A researcher hypothesizes that freshmen, sophmores, juniors, and seniors are represented equally…

A: It is given that the total number of volunteers is 40.

Q: 3. In experiments on pea breeding, Mendal obtained the following frequencies of seeds : Round and…

A:

Q: 13

A: Solution:  It is given that a quiz consists of 620 true or false questions. Also, the student…

Q: d. For a random sample of size 3, what is the chance that the sample mean will equal the population…

A: Here from part (a) we can see that the population mean is; μ=41.4 years and from part (b) the…

Q: A news article estimated that only 5% of those age 65 and older who prefer to watch the news, rather…

A: Solution: The population consisting of all adult Americans age 65 and older who prefer to watch…

Q: b. Find the probability that a randomly selected acre in the forest has fewer than 28,814 ants. c.…

A: We have to find given probability...and quartile values..

Q: 05. Suppose we wish to study the relationship between religious affiliation and geographical region.…

A: The null hypothesis is: H0: Religious faith is independent of region The alternative hypothesis is:…

Q: 4.2.17 Use the data in the following table, which lists drive-thru order accuracy at popular fast…

A: Given data: The given contingency table is: Total number of orders included in the sample, n =…

Q: A null hypothesis states that p=.5, the observed sample proportion is p=.592 with a sample size of…

A: Given, p0 = 0.5 P^ = 0.592 n = 67

Q: 2) A microwave oven is designed to emit a radiation level of 0.15 through the closed door. The…

A:

Q: 9 - A survey conducted in a city revealed that 25% of the people do sports. 8 people are randomly…

A: We have given that  Sample size n=8 , p=25%=0.25  and  q=1-p=1-0.25=.75

Q: 3. A gambler thinks a die may not be landed on the six numbers with equal chance. To test his…

A: The following sample is taken by researcher to check whether the die is balanced or not. Number…

Q: From statements in J. R. R. Tolkien's "The Fellowship of the Ring" (Prologue I, paragraph 4), I…

A: We have given that.   X~N( μ , ?^2 )   μ= 36 , ? = 4.2   Z-score =( x - μ )/?

Q: 9. Final: Suppose that 70% of adults owned their own homes. A random sample of seven adults was…

A: Given,n=7p=0.7q=1-p=0.3x=no.of adults owned their own homesx~Binomial(n=7 , p=0.7)P(X=x)=cxn px qn-x…

Q: According to the Official Stage Magician Handbook, magic rabbit weight (Ibs.) is normally…

A: The test significance for the single mean if σ is known. Thus the standard normal variate…

Q: CH 10 3-What are 2 examples where a one-sample z-test would be appropriate?

A: Example 1: The height of all boys in a college follows normal distribution with mean height of 6.2…

Q: A test was given to a group of students. The grades and gender are summarized below   A B C Total…

A: Given,

Q: Suppose the one-proportion z-test statistic in a two-sided hypothesis test about a population…

A:

Q: 4. Suppose an actual census showed that 18.4% of the households in California have incomes in excess…

A:

Q: 3. The following frequency distribution shows the number of times an outcome was observed from the…

A: From the given information, Sample size (n)  =2400 When die is thrown , probability of getting each…

Q: A die is tossed 120 times with the following results: No. turned up: 1 3 4 Total Frequency: 30 25 18…

A:

Q: Answer the following questions on a separate sheet of paper. It has been reported that some parents…

A: Given data, n=500 x=350 true proportion (p)=?

Q: 7. A poll of 60 students selected at random at State University found that 12 were in favor of…

A:

Q: Answer the Following Question Probability of rolling a 2 when a dice is tossed.

A:

Q: Part 1 of 2 O Polnts: 0 of 1 Save Find the probability and interpret the results. If convenient, use…

A:

Q: A film student wanted to investigate the relationship between gender and movie preference. A random…

A: Required probability is P(female AND prefers comedy)

Q: In an experiment to study the relationship of hypertension and smoking, the shown data are collected…

A: H NH Total Nonsmokers 21 45 66 Moderate 40 28 68 Heavy 28 18 46 Total 89 91 180

Q: robabilities. Use Table B (Z-table) to find the probabilities listed here. In each instance, sketch…

A: Use Table B (Z-table) to find the probabilities.

Q: In an experiment to study the relationship of hypertension and smoking, the shown data are collected…

A:

Q: The hypotheses are: O Ho:p1 p2 O Ho:p H2 O Ho:p1 2 P2; Ha:p1 < p2 O Ho: p1 = p2; Ha: µ1 # 42 O Ho:…

A: SD of SAT scores = 100. ACME school students sample size = 34. ACE school students sample size = 30.…

Q: f one student is chosen at random from those who took the test, find the probability that the…

A: Consider ,    A B C Total Male 11 13 12 36 Female 14 8 2 24 Total 25 21 14 60 Our aim is…

Q: A die is tossed 6l imes and the following frequencies are observed. 12 3 45 16 outcome Observed…

A: The null hypothesis is a simple statement of no difference and the alternative hypothesis is simply…

Q: 3. 0.03 of the goods produced in a factory are defective. When a 25 unit sample is drawn for…

A: P(defective)=0.03=P q=1-P=0.97 n=25 x= no. of defective goods, p(x=X)=nc x px qn-x    - binomial…

Q: ..s) A researcher studied the relationship between coffee drinking and heart attacks in young women.…

A: Find ( A ) P ( heavy and heart attack )  =? (  B ) p ( heart attack / heavy )  =?

Q: According to the Official Stage Magician Handbook, magic rabbit weight (lbs.) is normally…

A: Normal distribution is a continuous distribution which has many real life applications. A standard…

Q: Which one of the following is least likely to have occurred by chance; i.e., has resulted from…

A: Z score represent the difference from mean as the value of z score will be high, The data is less…

Q: 6. A poll of 80 students selected at random at Midtown University found that 20 were in favor of a…

A:

Q: 2. Suppose this is a random sample. Test the hypothesis that there is an association between…

A: Given: Mother's education, X Respondent's education, Y 16 16 16 18 12 14 12 14 9 9 8…

Q: In order to test hypotheses Ho: u = 70; Ha: µ < 70. %3| A random sample of size 64 is taken . The…

A:

Q: Let the random variable X be equally likely to assume any of the values 1/7 3/7, or 2/7. Determine…

A:

Q: 6. Purchased gum Kept the money Students give 4 quarters Students given a Sbill 29 13 11 38 a. Find…

A: Summarized form of the given information has been presented in the following table:   Purchased…

Q: 1.1 A lecturer wants to know if his statistics class has a good grasp of basic maths from matric…

A:

Q: It is assumed that a production process may produce 8% defective items. 100 items are selected…

A: Note: Hi there! Thank you for posting the questions. As there are multiple questions, according to…

Q: 63) A study of the amount of time it takes a mechanic to rebuild the transmission for a 2010…

A: Given, Mean = 8.4 Standard deviation = 1.8 Sample size = 40   The objective to is find the…

Q: A researcher wants to know the personal preferences of students when it comes to fast food. She…

A:

Q: A lecturer wants to know if his statistics class has a good grasp of basic maths from matric level.…

A:

Q: Consider a single roll of a fair four-sided die. We know that the probability of rolling a '4' is…

A:

Q: New Authors Established Authors Total Successful 35 115 150 Unsuccessful 70 280 350 Total 105 395…

A: Topic - relative frequency of an event

Q: A die was tossed 60 times and the out come was as follows: Outcome 1 4 Freq 15 69 8 6 13 If Die was…

A: Solution-: (a) We find the Z-test or t-test is use for this problem? (b) Table value=? (c) What is…

Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.