A math teacher claims that she has developed a review course that increases the scores of students on the math portion of a college entrance exam. Based on data from the administrator of the exam, scores are normally distributed with u = 519. The teacher obtains a random sample of 1800 students, puts them through the review class, and finds that the mean math score of the 1800 students is 525 v th a standard deviation of 115. Complete parts (a) through (d) below. (d) Test the hypothesis at the 0.10 level of significance withn3350 students. Assume that the sample mean is still 525 and the sample standard deviation is still 115. Is Conduct a hypothesis test using the P-value approach. sample mean of 525 significantly more than 519? Find the test statistic. to =0 (Round to two decimal places as needed.) More

Q: Given P(A) = 0.36, P(A and B) = 0.32, P(A or B) = 0.50, what is P(B)? Answer in decimal form.…

A: From the provided information, P(A) = 0.36, P(A and B) = 0.32, P(A or B) = 0.50

Q: Given P(A and B) = 0.02, P(A) = 0.82, what is P(B|A)? Answer in decimal form. Round to 3 decimal…

A: The conditional probability of B given A, denoted P(B|A), is

Q: Given P(A and B) = 0.16, P(A) = 0.87, what is P(B|A)? Answer in decimal form.  Round to 3 decimal…

A:

Q: How are your grades? In a recent semester at a local university, 500 students enrolled in both…

A: GivenTotal no. of students both Statistics I and Psychology I=500No. of students got A in statistics…

Q: Find the area of the shaded region. The graph depicts the standard normal distribution of bone…

A: We have to find given probability.

Q: Given P(A) = 0.42, P(B) = 0.44, and P(A and B) = 0.22, what is P(A or B)? Answer in decimal form.…

A:

Q: Given P(B) = 0.41, P(A and B) = 0.23, P(A or B) = 0.50, what is P(A)? Answer in decimal form.  Round…

A: Let A and B are two events The known probabilities are, The formula for calculating the probability…

Q: Given P(A) = 0.34, P(B) = 0.33, P(A or B) = 0.24, what is P(A and B)? Answer in decimal form.…

A: Given,P(A)=0.34P(B)=0.33P(A or B)=0.24

Q: Given P(B) = 0.47, P(A and B) = 0.29, P(A or B) = 0.55, what is P(A)?   Answer in decimal form.…

A:

Q: Given P(A) = 0.31, P(B) = 0.28, and P(A and B) = 0.14, what is P(A or B)? Answer in decimal form.…

A: Ans - Given P(A) = 0.31, P(B) = 0.28, and P(A and B) = 0.14, what is P(A or B)?

Q: why did you add .032 when you did not list it p(x=6)?

A: The probability distribution table of X provided in the question is as follows…

Q: 39. What is the value of (EX)² for the scores: -1, 0, 3, 5?

A: Given that  The data are -1,0,3,5 Find the value (∑X)2

Q: If P(A) 0.3 , P(B) = 0.8 and P(A or B) = 0.9 Find P(A and B).

A:

Q: Given P(A) = 0.42, P(B) = 0.46, P(A or B) = 0.33, what is P(A and B)? Answer in decimal form.…

A:

Q: If P(An B) = 0.2 and P(B) = 0.8, what is P(A | B)?

A:

Q: to the right of z= -1.22

A: P(z>-1.22)=?

Q: Find the value of x: 1.

A:

Q: Which best represents y x-1? y 3 2 6. 4

A:

Q: Find the values of x: 3* + 4* = 5%

A: ∗Given:-         3x+4x=5x‐‐‐‐i∗To find:-         value of x=?

Q: What is needed to find a p value?

A: In hypothesis test we define the null hypothesis which is tested for possible rejection under the…

Q: Given P(A) = 0.36, P(B) = 0.40 and P(A B) = 0.17. Find P(AUB).

A:

Q: Given P(A) = 0.27, P(A and B) = 0.33, P(A or B) = 0.41, what is P(B)? Answer in decimal form.…

A: Formula : P(A or B) = P(A) + P(B) - P(A and B)

Q: Find t 0.975 when v = 15.

A: Solution: To find t0.975 when degree of freedom = v = 15.

Q: It's saying the x= is not 3.35, 0.15

A:

Q: Given P(B) = 0.28, P(A and B) = 0.29, P(A or B) = 0.45, what is P(A)? Answer in decimal form.…

A: Given :  P(B) = 0.28 P(A and B) = 0.29 P(A or B) = 0.45

Q: What is the value of x in ¤QRST ? Ð 16 G 12 12 4 3x s, 2X

A:

Q: Find P- hat and q - hat n = 76 and X = 28 Round your answer to three decimal places.

A: Answer: From the given data, Sample size(n) = 76 X = 28

Q: Given P(A) = 0.80, P(B) = 0.44, P(B|A) = 0.51, what is P(A and B)? Answer in decimal form.  Round…

A: We will use the conditional probability formula

Q: Given P(A) = 0.40, P(B) = 0.25, and P(A and B) = 0.11, what is P(A or B)? Answer in decimal form.…

A:

Q: Given P(A) = 0.27, P(B) = 0.32, and P(A and B) = 0.22, what is P(A or B)? Answer in decimal form.…

A: Solution: From the given information, P(A)=0.27, P(B)=0.32 and P(A and B)=0.22. The P(A or B) is…

Q: the left of z= -1.3

A: The required probability can be found by using the standard normal table. Observe the left of z=…

Q: didnt answer the last question what is the value of c

A: b) The degree of freedom is,  df=17 The value of level of significance is, α=0.05