Using alpha = .05, what is your decision if the p-value is 0.04 for a one-tail test?

Using alpha = .05, what is your decision if the p-value is 0.04 for a one-tail test?

do cafe customers stay longer with darker lighting- is this observational or observational with case control It's either a.observational b.observational with case control...

The second one is: do cafe customers stay longer with dark let lighting- is this observational,observational with case control,experiment,experiment with single or double blinding

Of the 67 students studying a foreign language at Green Hills High School, 24 are studying Spanish, 24 are studying French, and 28 are studying German. There are 6 students studying Spanish and French,...

Given the info; mean_x=2, sigma_x=.05, mean_y = 1, sigma_y = 0.07, and p = .08 Find P(Y>1.07) and Find E[Y|X = 1.9]

during a tennis tournament there were 611 challenges by players. Among those challenges 172 were upheld with the call overturned. Assume that 33% of the challenges of the challenges are successfully...

You are going to test the claim that less than 60% of women do the income taxes for their household. In a random sample of 600 women, 345 of them do the income taxes for...

Given the following information about a sample, calculate a z score for a test grade of 91. = 87, s = 4.01

TABLE 2 No.of mobile phones sold: 15 16 17 18 19 20 per day, X P(X = x): 0. 12 0.15 0.20 0.25 0.17 0.11 i. Show that the above distribution is a probability distribution...

STATISTICS A statistical post-mortem of subprime mortgages Subprime mortgages were prominent business news in 2007 and 2008 during the meltdown in the financial markets. A subprime...

1.do cafe customers stay longer with darkwe lighting? a. observational b.observational with case control c. experiment d.experiment with single bonding or double binding 2...

The Vehicle Speeds at a certain location in PLUS highway can be described by a normal distribution. The mean speed is 110 km/h, and the standard deviation is 10 km/h. Find the percentage of vehicle...

How many percent precise is the result of the study of 250 respondents were taken from 5750 members of academic organization?

1. In the following, assume normality is satisfied if needed. (a) Given n = 20, x¯ = 100, s = 15, find the critical value tα/2,n−1 and the 90% confidence interval. (b) Given n = 25, x¯ = 10,...

Do adding multivitamin supplements to your daily diet help decrease the number of colds caught...is this a double blind or single blind study?

A student has an evening job as a waiter in a restaurant, for which the monthly incomes are normally distributed with a mean of RM 400 and a standard deviation of RM 80. i. Without doing...

The probability density function f(x) of a continuous random variable X is: f(x)={ -kx, If -1<x<o ={k, If o≤x<1, where k is a positive constant. ...

The participants in a television quiz show are picked from a large pool of applicants with approximately equal numbers of men and women. If participants are picked randomly, what...

A researcher wanted to determine if carpeted rooms contain more bacteria than uncarpeted rooms. The table shows the results for the number of bacteria per cubic foot for both types of rooms. Carpeted: 15...

When a virus is placed on a tobacco leaf, small lesions appear on the leaf. To compare the mean number of lesions produced by two different strains of virus, one strain is applied to half of each...

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