Use a= .01 and one tailed test  t= -2.50, df =25. reject, fail to reject  t= 4.00, df =35. reject, fail to reject  t= -1.55, df= infinty symbol. reject, fail to reject

Q: If instead of 25, 80 male runners are selected for the study, what is the sampling error at 95%…

A: It is given that Sample size n = 80 Sample mean M = 53 Population SD = 5.5 Margin of error E = 0.8…

Q: Jaden’s current grades in Statistics are the following.  Is it possible for Jayden to earn an A…

A:

Q: Five pulse rates are randomly selected from a set of measurements. The five pulse rates have a mean…

A: Given values are 69,65,58,54. let x be the missing value. Total no. of values is n=5 mean is given…

Q: Claim: Fewer than 83% of adults have a cell phone. In a reputable poll of 1143 adults, 78% said that…

A: Sample size(n)=1143 Population proportion(P)=0.83 Sample proportion(p^)=0.78

Q: the Security Guard slept for 4 hours. What it the mean of the hours slept?* Hints: Mean = Sum of the…

A: It is given asThe data set values are9, 3, 7, 4

Q: 20 high school Spanish teachers attended an intensive summer course designed to improve their…

A: Given that, X1 bar = 27.3 S1= 5.04 X2 bar= 28.75 S1 = 4.74 n1= n2= 20 Hypothesis,  Ho: The course…

Q: A company manufactures tennis balls. When its tennis balls are dropped onto a concrete surface from…

A: Given that n=25

Q: A study explores weight changes in high school students during the pandemic. Let X = change in…

A: “Since you have posted a question with multiple sub-parts, we will provide the solution only to the…

Q: Choose a match 0.5453 -2.01

A: It is given that P(-2.01 < Z < z) = 0.5453,  Where Z follows N(0,1)

Q: 4 kids have just received a large bag of candy pieces at a friend's birthday party each. The mean…

A: Given data is

Q: The mean waiting time at the drive-through of a fast-food restaurant from the time an order is…

A:

Q: Q2. A bag contains 10 discs with one of the digits 1, 2, 3 written on each disc. What is the lowest…

A: It is given that one of the digits 1, 2, and 3 are written on each disc.

Q: Q3 / If the student must answer 10 of the 13 questions, provided that he answers at least 4 of the…

A: A student is to answer 10 out of 13 questions in an examination such that he must choose at least 4…

Q: 14. A card is drawn from a deck of 52 playing cards. Find the probability of drawing a king or a…

A: As you have posted multiple different questions, we have provided answer for first question as per…

Q: Find the values of (a) zo.10. (b)-20.05. (c)-20.048

A: a) z0.10: PZ≤z=0.10          z=-1.28, from the Excel function, =NORM.INV(0.1,0,1)

Q: Brian is a baseball player. In the last 20 baseball games he played, he scored the following runs:…

A: Brian is a baseball player. In the last 20 baseball games he played, he scored the following runs:…

Q: (c) Now suppose that the value of 68 is an error in the values presented above. The actual value…

A:

Q: Thao earned the following scores on her six management exams last semester. 79, 85, 44, 91, 79, 88…

A: The scores earned on her six management exams last semester are as follows, 79 85 44 91 79 88…

Q: n is 20 and p is .20 find mean

A: We know that  A Binomial distribution has only two parameter n & p. So, if we have if n is 20…

Q: According to a 2017 Gallop Poll, 66% of all Americans have bought a product because it is better for…

A: In the question given that, The sample size is n= 350  And the proportion, p is 66% p= 0.66 We know…

Q: Alice sells boxes of candy at the baseball game and wants to know the mean number of boxes she…

A:

Q: Find the mode, median, and mean of the scores. (If there is no mode, enter NON 6.05, 5.01, 5.14,…

A:

Q: Identify each of the following as either descriptive or inferential statistics. The average student…

A: Basics:Inferential statistics: It alows researches to generlize to a population based on information…

Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…

A: Table ABCDTotal order accurate331267268124990order not accurate30594020149Total3613263081441139

Q: N is 7 P is 0.2 Draw histogram

A: Given: Number of trials (n) = 7 Probability of success (p) = 0.2

Q: n is 10 p is 0.2 Find mean.

A: According to the provided information. n = 10 p = 0.20

Q: A guidance counselor is interested in how student motivation changes across time. She gives sixteen…

A: The objective of the question is to identify the appropriate statistical test to analyze the change…

Q: Decide whether the random variable x is discrete or continuous. Explain your reasoning. Let x…

A: Here temperature of thermometer of a person can not count because random variables in the…

Q: help please answer in text form with proper workings and explanation for each and every part and…

A: Step 1: Objective and ConceptObjective:-To determine the value of the mean, standard deviation, and…

Q: Studying for the test: Mrs. On tha Sookhoo wants to know if student-made outlines improve…

A: Given: Here Mrs. Sookhoo wants to check student performance improve or not. Thus she taken two…

Q: A Where do you get most of your information on video games and movies? Friends Game store internet…

A: What is Survey? Surveys is a method  to collect information about people’s perspective, opinion,…

Q: Find the mean. 5) Ten students in Mrs. Smith's math class took a state sponsored aptitude test.…

A:

Q: Which of the following situations requires the application of inferential statistic? A. A school…

A: Descriptive statistics is the simple form, in which the population is tabulated, graphed or…