Assuming all conditions for the appropriate test are met, the agriculturalist reported a p-value of 0.072 for the test. Based on the p-value and  = 0.05 , would the owner of the farm introduce the ladybugs? Explain your answer.

Q: A software company is interested in improving customer satisfaction rate from the 69% currently…

A: Given Hypothesized pop. proportion, p0=0.69Favorable cases,x=146Sample size,n=193Sample…

Q: t does a z-score of -3.8 mean

A: A z-score is known as the standard score that determines how much the data point deviates from the…

Q: If the t-statistic for a variable is -1.74, is the variable statistically significant? No Yes

A: Given: Test statistic is -1.74

Q: Based on a sample of 20 men, 45% owned cats Based on a sample of 80 women, 50 % owned cats what is…

A: The test statistics is obtained below: From the given information, sample of 20 men, 45% owned cats…

Q: and the second scoring 23 on the ACT. Which of these students scored higher among the population of…

A: Suppose that the verbal portion of the Scholastic Aptitude Test (SAT) had a mean score of u = 400…

Q: The p-value for this test is approximately

A: Here Given for two tail test  Sample size=n=144 Sample mean=x¯=60.8 Standard deviation=s=3.6

Q: what will be the value of X at the z score =-2.5 given, mean=45 and standard deviation =5?

A: Mean = 45 Standard deviation = 5  Z score =-2.5 We have to find X score  for given data...

Q: Estimate the p-value for this test.

A: The test statistic is 2.600. The degrees of freedom is, df=r-1c-1=3-13-1=2×2=4 The degrees of…

Q: A software company is interested in improving customer satisfaction rate from the 60% currently…

A:

Q: A researcher finds that participants exposed to high, medium, or low levels of stress (as…

A: Given: The difference in the ratings of personal anxiety of participants is found by the researcher.…

Q: An analysis was conducted to determine whether the average height of the 25 girls in the same class…

A: To test whether the average height of 25 girls is different from the general population of 15-year…

Q: The data for an independent –measures research study produced a sample mean difference of 6 points…

A: Following information is given:

Q: At the 0.05 level of​ significance, is there evidence of a difference in the proportion of males and…

A: For males, sample size n1 = 300, and proportion of males who make an impluse purchase is 62% = 0.62…

Q: The test statistic is: (round to 3 places) The p-value is: (round to 3 places)

A:

Q: For the chi-square test of independence, how is the p-value evaluated?

A:

Q: Test the Claim that the mean number of headaches people get in a week greater greater than or gequal…

A: The hypothesis test for one-sample mean can be done either by a z-test or a t0test.

Q: 17. What is the z-score that corresponds to P = 0.9131?

A: Solution: 17) Let Z be the standard normal variable with mean μ=0 and standard deviation σ=1.…

Q: Your medical research team is investigating the mean cost of a 30-day supply of a certain heart…

A: Solution

Q: 40,900 km. Can it be concluded that the new tyre is significantly better than the old one, using the…

A: A company manufacturing automobile tires finds that tyre-life is normally distributed with a mean…

Q: A software company is interested in improving customer satisfaction rate from the 78% currently…

A: Givenp=78%=0.78x=108n=132p^=xn=108132=0.8182

Q: An article reports that in a sample of 124 nurses, 51 said that a busy workload had a positive…

A:

Q: A very wise teacher measured brain activity in all 20 seniors in his Statistics class in the first…

A: We have to find p value for given testing.

Q: A software company is interested in improving customer satisfaction rate from the 74% currently…

A: Z-Test:  Here the hypothesis test is for the population proportion. The test statistics compared…

Q: A software company is interested in improving customer satisfaction rate from the 80% ourrently…

A: Solution Given that , claim proportion of customer satisfaction p=80% That p=0.80 To test the…

Q: Human body temperatures have a mean of 98.60° F and a standarddeviation of 0.62° F. If Sally’s body…

A: Let X be the human body temperatures that follows normal distribution with mean of 98.60-degree F…

Q: What can be concluded at the αα = 0.05 level of significance?

A: Given that sample size n = 399 Number of millionaires who could wiggle their ears, X = 60 Level of…

Q: A university administrator obtains a sample of the academic records of past and present students at…

A: Hypothesis testing is an act in statistics whereby an analyst tests an assumption regarding…

Q: (b) 57 houss of A pasticipant, Janceel, had his -Score? Sleep per uweelk . what ū z-Scose? (0)…

A: Given that,  Sample size (n) = 40 At 95% confidence intreval.  Lower limit = 42 Upper limit = 54 Z…

Q: A teacher measured brain activity in all 60 seniors in her Statistics class in the first week of…

A: The null and alternate hypothesis are H0 : μd=0HA : μd<0 where, μd is the difference of the first…

Q: A software company is interested in improving customer satisfaction rate from the 77% currently…

A: Solution: Given data p = 0.77 sample size (n) = 248 x = 202 Sample Proportion is given  by; (p̂) =…

Q: A software company is interested in improving customer satisfaction rate from the 66% currently…

A: From the provided information, A software company is interested in improving customer satisfaction…

Q: On a multiple choice test with 10 questions, each question has four possible answers, one of which…

A:

Q: Sixteen out of 35 high school seniors ran the mile in less than 6.25 minutes. At a=0.01, is there…

A: Solution: Give Total =60 X+ =35 remaing. X-=25 The test statistic is X = \min\{X^+, X^-\} =…

Q: A software company is interested in improving customer satisfaction rate from the 76% currently…

A: It is given that, A software company is interested in improving the customer satisfaction rate from…

Q: The p-value for this test is

A: Given : n=26 , s=0.06 , σ2=0.003  Our aim is to find the p-value.

Q: Use a T-test of the data given in the picture, compare it with a P value(one tailed) and do a…

A: The three pairs Male and Female, Male and Male and injected male and male, and objective is to apply…

Q: What information is provided by the sign (+/−) of a z-score? What information is provided by the…

A: The Z-score is given by: Population: Z=X-μσ,Sample: Z=X-Xs .

Q: Is there a significant relationship between income and the level of work adjustment of the…

A:

Q: A software company is interested in improving customer satisfaction rate from the 53% currently…

A: Statistical tests are used to calculate the test statistic and p-value. This test statistic and…

Q: Based on the above, he est statistic is equal to?

A: It is given that Sample size n = 30 Sample mean = 14 Sample SD = 14 Level of significance = 0.05

Q: Identify the P-value. What is the conclusion for this test?

A: It is given that the test statistic is 12.67.

Q: What does the P-value describe?

A: P value can be defined as the probability value for a given statistical model that null hypothesis…

Q: Your medical research team is imvestigating the mean cost of a 30-day supply of a certain heart…

A: From the given statement, the null hypothesis isH0:μ=$95

Q: Find the score of a student who scored worse than 70 percent of the test takers in the verbal…

A: The standard normal variable Z is defined as, Z = (X – µ)/σ, where µ is the mean of the random…

Q: State whether the z-score locates the raw score x within a sample or within a population…

A: Solution: Given data ×=50,        s=5, x̄ =40  To find: Whether the z-score locates the raw score x…

Q: A study found that 13% of Americans have seen or sensed the presence of an angel. A contingent…

A:

Q: The weights in ounces of a sample of running shoes for men and women are shown. If we want to test…

A: The mean significance is tested for the larger population by taking samples into accounts using the…

Q: What is the formula for finding the z-score? The z-score of the mean is always z =

A:

Q: Find the P-value in a test of the claim that the mean IQ score of acupuncturists is equal to 100,…

A: From the provided information, The mean IQ score of acupuncturists = 100 The hypotheses can be…

Q: Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high…

A: using the given data fill all the blanks required

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.