Starbucks wants to check how they are doing on their drive-thru pick up times.  The franchise owner has determined that drive thru pick up times should not exceed 4 minutes.  He randomly selects 50 customers to see if the pick-up time exceeds the 4 minute window.  Suppose the P-value for the test was found to be 0.018.  State the correct conclusion.

Q: Budoor is doing a biological research and she is testing a tablet by giving that to the monkeys…

A:

Q: A survey item administered at the end of a training program asked participants their opinion about…

A: The observed value (Oi) is:   Too much Too little Just Right Total Men 25 19 6…

Q: nd the p-valu

A: two tailed test with z = 2.3

Q: A humane society claims that less than 73% of households in a certain country own a pet. In a random…

A: Given,n=500x=355p^=xn=355500=0.71α=0.05H0:P≥0.73Ha:P<0.73

Q: A sample of n = 7 scores has a mean of M = 16 to X = 20. What is the value for the new sample me

A:

Q: Vhat percent of the population obtains scores of 410 or less? What is the minimum score needed to…

A: Let , X→N(μ=500 , σ=100) Our aim is to find following :  a) P(X≤410) b) The minimum scores needed to…

Q: A microbiologist wants to estimate the concentration of a certain type of bacterium in a waste-water…

A: A microbiologist puts a 0.5 mL sample of the wastewater on a microscope slide and counts 39…

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

A: Given information- Margin of error, E = 7% = 0.07 Confidence level, c = 80% Since nothing is known…

Q: Claim: Fewer than 9292​% of adults have a cell phone. In a reputable poll of 10151015 ​adults,…

A: It is given that n =1015 and p hat is 0.82.

Q: Q4. You conduct a poll comparing two candidates. In a poll of 400 people, 190 prefer candidate A,…

A: According to the question, in a poll of 400 people, 190 prefer candidate A and 210 prefer B.

Q: A magazine provided results from a poll of 1000 adults who were asked to identify their favorite…

A: From the provided information, Among 1000 respondents 13% choose chocolate pie and the margin of…

Q: Find the P-value interval for the test value.                      χ 2 = 19.222  , n = 11,…

A: The type of test is left tailed test The value of sample size is, n = 11 The value of chi square…

Q: A crate contains 50 light bulbs of which 11 are defective and remaining are nondefective. A quality…

A: because X is a discrete variable. Given that there are 50 light bulbs of which 11 are defective. So…

Q: A researcher is investigating the effect of acupuncture treatment for chronic back pain. A sample of…

A: State the hypotheses. That is, there is no evidence that acupuncture treatment significantly…

Q: vith Exemor, and 195 find relief from their depression. Can we conclude, at the 0.01 level of…

A: Given : n1=402 , n2=587 , X1=146 , X2=195 ,  α=0.01 Here , we want to test the claim that the…

Q: The claim is that the proportion of adults who smoked a cigarette in the past week is less than…

A: It is given that n is 1,817 and x is 400.

Q: Mike must work at least 18 hous a week to supplement his income while attending school. He has the…

A: Let the number of hours Mike has to work in store 1 and store 2 be x1 and x2 respectively. To solve…

Q: s the newly hired manager of a company that provides cell phone service, you want to determine the…

A: It is given that margin of error (E) is 0.92 and the confidence level is 0.90.

Q: From the previous question, what would what the average preferred ice crease flavor be? (hint: note…

A: There are three different types of averages - mean, median, and mode. Favorite Icecream Flavour…

Q: A survey of 120 men found that 72 gamble. Another survey of 100 women found that 52 gamble. (a) Test…

A: a)   Denote p1, p2 as the true population proportions of men and women, who gamble, respectively.

Q: The claim is that the proportion of adults who smoked a cigarette in the past week is less than…

A: From the provided information, The hypotheses can be constructed as: Null hypothesis: H0: p = 0.25…

Q: A sample of n = 11 scores has a mean of M = 55.  One new score is added to the sample and the new…

A: It is given that , A sample of n=11 has a mean of M =55.

Q: The market share analysis company, Net Applications, monitors and reports on the use of the Internet…

A:

Q: The recidivism rate for convicted sex offenders is 8%. A warden suspects that this percent is…

A: Given,n=321x=22p^=xnp^=22321=0.0685α=0.01

Q: A sample of n = 8 scores has a mean of M = 12. What is the value of  ∑X

A:

Q: 2- Given a x̅= 1, 000 and s= 100- you are taking a standardized test- what is the minimum score you…

A: According to empirical rule approximately 95% of observations lie within two standard deviation to…

Q: You are thinking of moving to either Des Moines, Iowa or San Francisco, California. A friend claims…

A: 1) From the given output, the test statistic is 0.162 and the p-value is 0.873.

Q: The recidivism rate for convicted sex offenders is 14%. A warden suspects that this percent is…

A: Given,n=359x=65P^=Xn=65359=0.181α=0.05H0: P =0.14H1: P>0.14

Q: Consider a test for µ. If the P-value is such that you can reject H0 for α=0.01, can you always…

A: From the given information, Consider, a test for µ. While testing the µ it is already given that the…

Q: The trunk diameter, in centimeters, of a certain variety of pine tree is represented by X~N(150,…

A: We have to find out the z-score for a tree with a diameter of 170 centimeter..

Q: A random sample of 93 American female soccer players found that 11 play professionally abroad. Build…

A: Given  n = 93 x = 11 α = 0.93

Q: An independent-measures study comparing two treatment conditions with n = 6 in each sample produces…

A: Given that the sample sizes of the independent measures of two treatment conditions is equal to n =…

Q: A financial analyst of Woolworths is interested in the average number of months that it takes…

A: There are two possibilities because from the question it is not clear that is it Z - test or T-…

Q: Q1:Let p equal the proportion of drivers who use a seat belt in a country that does not have a…

A: Given, p = proportion of drivers who use a seat belt in a country that does not have a mandatory…

Q: A sample of non-English majors at a selected college was used in a study to see if the student…

A:

Q: µ = 9 has Σ X = 54. How many scores are in the populatio

A: Given that   A population with mean (μ) = 9 Summation of data values  Σ X = 54   We know that Mean =…

Q: The student needs a minimum score of 72.25 fourth test to ensure a grade of at least a C. x on the

A: We have given that the first three test scores of students 67.75, 66 and 72

Q: A sample of Americans was questioned.  The proportion in support of Mr. Trump was 48%.  The…

A: a) The lower bound of the interval for the proportion in support of Mr. Trump is, Lower…

Q: John Davis, a manager of a supermarket, wants to estimate the proportion of customers who use food…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Thirteen different video games showing drug use were observed. The duration times of drug use ​(in…

A: Given n=13

Q: A real estate agent wants to know how the home size (in square feet) of parents compares to the home…

A: The Wilcoxon sign rank test is a type of non parametric test. Also, Wilcoxon sign rank paired test…

Q: A sample of non-English majors at a selected college was used in a study to see if the student…

A: The random variable score follows normal distribution. There are two independent samples which are…

Q: A manager states that in his factory, the average number of days per year missed by the employees…

A: Given that the a manager states that in his factory, the average number of days per year missed by…

Q: Your local gas company is interested in estimating the average usage during the month of January. A…

A:

Q: A video game claims that the drop rate for a certain item is 5% according to a game publisher. In…

A: The hypotheses are given below: Null hypothesis: H0:p=0.05 Alternative hypothesis: H1:p≠0.05 The…

Q: At a local university, English instructors are supposed to grade essays in a class so that the…

A: Note: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: A sample of students is to be selected to estimate the proportion who have recieved a medical…

A: The known values are,   The sample proportion is, Critical values: By using the standard normal…

Q: Victims of Violence A random survey of 86 women who were victims of violence found that 20 were…

A: Given information: First sample size is, n1 = 86 women who were victims of violence Out of 86 women,…

Q: A sample of n = 9 scores has EX = 108. What is the sample mean? %3D The sample mean is

A: Given: Formula: