1. Which of the following is NOT equivalent to cot 4y? 1+cos By sin 8y 1+cos 8y 1-cos 8y 1-cos 8y 1+cos 8y sin 8y 1-cos 8y

Q: Solution: Step 1: State the hypotheses. Step 2:The level of significance and the critical region.…

A: Given : Data  : First we need to calculate the mean and standard deviation for both the samples For…

Q: In a survey of 100 randomly selected dentists, 28 dentists recommended Pearly brand over the other 5…

A: The random variable X is the dentists recommended Pearly brand toothpaste The total sample size is…

Q: Use the data below to answer the following questions: Person Before Competition After Competition…

A: Formula : Standard error : Se = Sd/√n

Q: 66,67,34,45,64,67,75,58,54,59,67. Find the mode(s) of the given scores.

A: It is given that the scores of students are66,67,34,45,64,67,75,58,54,59,67

Q: A fisherman is interested in whether the distribution of fish caught in Green Valley Lake is the…

A: Given,rainbow troutother troutbasscatfishGreen Valley Lake206764766395Echo…

Q: A contingency table has 6 rows and 8 columns What is the value of degrees of freedom

A: No. of rows(r)=6No. of columns(c)=8 We have to find the value of the degree of freedom.

Q: Q3 tind the Value of Sec3

A: The given expression,sin2sec-13+sincos-123

Q: Find 2 values of θ such that 0 ≤ θ < 2π and 4sinθ + 8cosθ = 0. Give your answers correct to 3…

A:

Q: Three times each day, a quality engineer samples a component from a recently manufactured batch and…

A:

Q: the hang time

A:

Q: A group has 20 man and 22 women what is the percentage of the women in the group

A: Given that, Total number of people = 20+22= 42 Man = 20 Women= 22

Q: A poll of 520 citizens of Normal, Illinois showed that 59% favored strict enforcement of speed…

A: A poll of 520 citizens of Normal Illinois showed that 59% favored strict enforcement of speed…

Q: median from 2, 3, 3, 2, 3, 4, 5, 4, 5

A: Median : First arrange given data in ascending order.   Median = n+12th ordered value, if n is…

Q: A contingency table has 2 rows and 6 columns What is the value of degrees of freedom

A: Answer: From the given data, Number of rows (r) = 2 Number of columns (c) = 6

Q: tell why other options are not correct

A: The answer given by the expert is not correct.Here, we will use t-test for population mean (option…

Q: Describe about the two types of incorrect decisions.

A: Two possibilities of the test result: Reject the null hypothesis. Fail to reject the null…

Q: You are running a race and pass the person in 2nd place. What place are you in now

A: Given  If you are running a race and pass the person in 2nd palace.

Q: A researcher is interested in determining if sleeping more hours the night before an exam will…

A: It is wanted to be determined by the researcher whether sleeping more hours the night before a test…

Q: Drawthepolarcurve?=1+3sin3?

A: Solution: The objective is to draw the graph of the polar curve r=1+3sin(3θ)

Q: Please do not give solution in image formate thanku  Two students at a local high school conducted…

A: It is stated that Jillian obtained 5 classes from a list of classes at the high school as a sample.…

Q: 3V3 3.

A: