Question:

Consider that 30% of the understudies of a given class are occupied with project during the thirteenth seven day stretch of semester. In addition, accept that 22% of understudies are female, and 18% of all understudies are females who occupied with project during the thirteenth seven day stretch of semester.

On the off chance that you pick an understudy aimlessly from this scholarly community, what is the likelihood that this individual is a male who take part in project during the thirteenth seven day stretch of semester?

In the event that you pick an understudy indiscriminately from this scholarly world, what is the likelihood that this individual is a male who doesn't take part in project during the thirteenth seven day stretch of semester?

An analyst leads an investigation to comprehend the connection between estriol level in pregnant ladies and the birth weight of their infants. The scientist gathers an example of 100 kids. The example mean birth weight is =3, with test standard blunder S = 1.7

Structure a 95% and 99% certainty span for the genuine mean birth weight

A baby is considered 'underweight' if their introduction to the world weight is beneath than 1.8. Test the invalid speculation that the genuine mean is 1.8 against the elective theory that the genuine mean is under 1.8. Process a Z-score. What do you finish up?

3.True or bogus (and why): the p-esteem is the likelihood that the speculation is valid.

Whatis the main huge change that American drivers made because of higher gas costs? As per an Access America overview, 30% said that it was cutting sporting driving.

In any case. 27% said that it was solidifying or diminishing tasks. In the event that these figures are valid for all American drivers, and If 20 such drivers are arbitrarily examined and asked what Is the primary huge change they made because of higher gas costs,

Whatis the likelihood that precisely 8 said that it was solidifying or diminishing tasks?

Whatis the likelihood that none of them said that It was cutting sporting

driving?

What is the likelihood that in excess of 7 said that it was cutting sporting driving?

(13)

At a home loan organization, 60% of calls are replied by a chaperon. The

staying 40% of guests leave their telephone numbers. Of these 40%, 75%

get a return call that very day. The excess 25% get a

return call the following day.

Of the individuals who at first addressed an orderly, 80% will apply for a home loan.

Of the individuals who got a return call that very day, 60% will apply. Of those

who got a return call the following day, 40% will apply.

Compute the likelihood that an individual at first addressed a chaperon, given

that the person in question applied for a home loan.

Determine whether the claim stated below represents the null hypothesis or the alternative hypothesis. If a hypothesis test is performed. how should you interpret a decision that (a) rejects the null hypothesis or (b) fails to reject the null hypothesis? A researcher claims that the standard deviation of the lite of a certain type of lawn mower is at most 2.3 years. Does the claim represent the null hypothesis or the alternative hypothesis? Since the claim '2 a statement of equality, it represents the I: hypothesis. contains does not contain Determine whether the claim stated below represents the null hypothesis or the altematiye hypothesis. Ifa hypothesis testis performed, how should you interpret a decision that (a) rejects the null hypothesis or (b) fails to reject the null hypolhesis? A researcher claims that more than 33% of people had at least one health care visit in the past year. Does the claim represent the null hypothesis or the alternative hypothesis? Since the claim E a statement of equality. it represents the I: hypothesis. Determine whether the claim stated below represents the null hypothesis or the altematiye hypothesis. If a hypothesis test is performed. how should you interpret a decision that {a} rejects the null hypothesis or (b) fails to reject the null hypothesis? A scientist claims that the mean incubation period for the eggs of a species 01 bird is less than 32 days. Does the claim represent the null hypothesis or the alternative hypothesis? Since the claim E a statement ofequality, it represents the l: hypothesis. null alternative results An instructor asked five students how many hours they had studied for an exam, with the accompanying Hours Studied Test Grade 11 51 97 6 8 84 73 62 24) Figure the correlation coefficient (r) by filling in the blanks. Hours Studied Test Grade Cross X X-M. Products (X-M.) Y Y-My (Y-M.) ZY Z. ZY 0 -6.2 38.44 -1.72 51 11 -22.4 501.76 4.8 -1.39 2 39 23.04 97 23.6 556.96 1.46 6 -0.2 0.04 -0.06 84 10.6 112.36 0.66 ? 1.8 3.24 0.50 73 -0.4 -0.02 -0.0 6 -0.2 0.04 -0.06 62 -11.4 129.96 -0.71 7 E= 31 E= 64.8 E-367 2- 1301.2 My = 6.20 SD-=12.96 M,=? SD -? SD=3.60 SD-? Answer: r= 25) Determine the cutoff score(s) for this two-tailed test, using the .01 significance level. (Use a comma to separate answers as needed.) Answer: 26) Determine the test statistic. Answer: 27) Decide whether to reject the null hypothesis. Choose the correct answer below. A. Do not reject the null hypothesis. The results are inconclusive. B. Reject the null hypothesis. The results prove that the research hypothesis is true. C. Do not reject the null hypothesis. The results prove that the null hypothesis is true. D. Reject the null hypothesis. The results support the research hypothesis. Answer:If you were to hypothesize that communication students and history students will differ on their oral communication measures, you would have a_ O two tailed research hypothesis O a speculative research hypothesis O null hypothesis O one tailed research hypothesis Question 17 1 pts If you were to hypothesize that communication students will have a higher average score on the oral communication measures, you would have a a speculative hypothesis O one tailed research hypothesis O two tailed research hypothesis O null hypothesisQUESTION 1 Data on the number of occurrences per time period and observed frequencies follow. Use a = .05 to perform the goodness of fit test to see whether the data fit a Poisson distribution. What hypotheses are appropriate for this test? Number of Occurrences Observed Frequency 39 30 AWNO 30 18 3 Ho: The population has a Poisson distribution O H1: The population does not have a Poisson distribution Ho: The population has a Normal distribution O H1: The population does not have a Normal distribution Ho: The population does not have a Poisson distribution O H1: The population has a Poisson distribution Ho: The population has a Poisson distribution O H1: The population does not have a Poisson distribution