22. At a certain restaurant, the distribution of wait times between ordering a meal and receiving the meal has mean 11.4 minutes and standard deviation 2.6 minutes. The restaurant manager wants to find the probability that the mean wait time will be greater than 12.0 minutes for a random sample of 84 customers. Assuming the wait times among customers are independent, which of the following describes the sampling distribution of the sample mean wait time for random samples of size 84 ? (A) Approximately normal with mean 11.4 minutes and standard deviation 2.6 minutes 26 (B) Approximately normal with mean 11.4 minutes and standard deviation minute V84 (C) Approximately normal with mean 12.0 minutes and standard deviation 2.6 minutes (D) Binomial with mean 84(0.41) minutes and standard deviation 84(0.41)(0.59) minutes (E) Binomial with mean 84(0.5) minutes and standard deviation /84(0.5)(0.5) minutes

Q: Are you sure this is right

A: Yes, the solution given is correct.

Q: The degrees of freedom are directly related to

A: Let, X1,X2,...,Xn be the samples from normal distribution. Let, S2 be the sample variance.  We know…

Q: answers were wrong.

A: X Frequency 0 2 1 6 2 8 3 36 4 50 5 68 6 55 7 36 8 19 9 10 10 4

Q: 0 is within the scope of the model. What is 1.29. Refer to regression model (1.1). Assume that X =…

A:

Q: Something is traveling 7 miles per hour South. This could be represented by 7 = ( )

A:

Q: What is the value for s3?

A:

Q: Which is the right option?

A: Pascal's identity states that Ckn=Ckn-1+Ck-1n-1 for any positive k and n. here  Ckn  are binary…

Q: it said your answer was incorrect

A:

Q: The table shows the movement of a stock for 30 randomly selected trading days. "Up" means the stock…

A:

Q: WHAT IS H0 AND H1 MEANS?

A: H0 is null hypothesis and H1 is alternative hypothesis.

Q: What is the error?

A: The formula of standard deviation is:

Q: e. Which

A: From given figure it is clear that

Q: It is wrong. It says they are both incorrect.

A: X-intercepts are found by substituting y=0 in the given function.

Q: the answer is wrong

A:

Q: so what are the values of d and c?

A:

Q: Match these values of r with the accompanying scatterplots: 0.755, – 0.404, 0.993, - 0.755, and - 1.…

A: r: correlation coefficient. This determines the level of relationship between 2 variables. Its value…

Q: 1. Compare the following numbers: 4.69 4.171

A: Dear student as per our rule in one session we can only solve one question please post the other…

Q: What is the Ho and Ha

A: Null hypothesis  is the hypothesis  of no difference While alternative  hypothesis is the claim that…

Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.