When doing probability on a z table how do I know when to do 1 minus "n"  For example, would I do it for P{z< .63? .63 on the z-table .7357, would that be the answer or should I subtract that from one? Also, does anything change if the "less than sign" becomes a "less than or equal to sign"?

Q: Assume that hybridization experiments are conducted with peas having the property that for​ offsprin...

A: From the provided information, Probability (p) = 0.75 Sample size (n) = 34 The process will follow b...

Q: The table summarizes results from 986 pedestrian deaths that were caused by automobile accidents. Pe...

A: In the provided table the cell where “neither the pedestrian nor the driver was intoxicated”. This c...

Q: Given a normal population whose mean is 50 and whose standard deviation is 5. Find the probability t...

A: Let X be the random variable. It is given that X is normally distributed with mean 50 and standard d...

Q: Suppose that a test for presence of a disease is 87.5% accurate. Within a sample of 3200 patients, t...

A: (1)   From the given information,   The incidence rate of disease = 14% The accuracy of test = 87.5%...

Q: A clinical trial is planned to compare an experimental medication designed to lower blood pressure t...

A: The test hypotheses are given below: From the given information, the claim of the problem is testing...

Q: If you roll a single die and count the number of dots on top, what is the sample space of all possib...

A: The sample space of all possible outcomes is, The outcomes are equally likely because all possible ...

Q: A line segment of length 1 is cut once at random. What is the probability that the longer piece is m...

A: Let X be the cut point. The random variable X follows U(0, 1). The probability density function is, ...

Q: An analyst has developed the following probability distribution for the rate of return for a common ...

A: a) The expected rate of return can be obtained as:

Q: (a) Draw a tree diagram to display all the possible head-tail sequences that can occur when you flip...

A: a)A coin is flipped three times and possible head tail sequences that can occur are shown below  

Q: Richard has just been given a 6-question multiple-choice quiz in his history class. Each question ha...

A: It is given that each question has 4 options in which one is correct. That is probability of guessin...

Q: It is estimated that 63% of Americans will watch the Masters golf tournament and only 48% will watch...

A: Given that: 63% of Americans will watch the Masters Golf tournament and only 48% will watch the Brit...

Q: The heights of women aged 20 to 29 are approximately Normal with mean 61 inches and standard deviati...

A: From the provided information, The heights of women aged 20 to 29 are approximately normal with mean...

Q: True or False? A researcher wants to estimate the impact prenatal care during pregnancy can have on ...

A: Formula for sample size is,

Q: Middle school students were randomly sorted into one of two groups. Members of each group performed ...

A:

Q: ...Attached. Thanks.

A: Given critical region is, Here, y1+y2 follows Gamma distribution with parameters α=2 and β=θ.

Q: The scores on an aptitude test are normally distributed with a mean of 18 and standard deviation of ...

A: Note: Hey, since there are multiple subparts are posted, we will answer first three subparts for you...

Q: A&amp;B&amp;C&amp;D

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

Q: Suppose that 68% of people own dogs and suppose you pick two people at random. find the probability ...

A: From the given information, the percent of people own dogs is 68% and the number of selected people ...

Q: A researcher notes that there seems to be a difference in the prevalence of individuals who are medi...

A: Testing the independence of two variables: Medication adherence Levels of education along with leve...

Q: User Profile Week 7 Assignment: Hypothesi x +6.Week 6 Confidencelntrvals x t 5.Week 5 lain.instructu...

A: The given hypotheses are:

Q: How much money does a typical family of four spend at McDonald’s restaurants per visit? The amount i...

A: Given that, The amount is a normally distributed random variable whose mean is $16.40 and whose stan...

Q: Lactose intolerance causes difficulty digesting dairy products that contain latose. It is particular...

A: A) Let W be the event that selected person is White, B be the event that selected person is Black, A...

Q: A manager is considering placing an ad campaign on an emerging social media platform (e.g., Snap). T...

A: Given data   Part of Social Media Platform Not part of social media platform Total Age...

Q: Pupils Per Teacher The frequency distribution shows the average number of pupils per teacher in some...

A: From the given information,

Q: Let P(A) = 0.47, P(B) = 0.22, and P(A | B) = 0.42. a. Calculate P(A ∩ B) b. Calculate P(A U B) c. Ca...

A: a. The given probabilities are P(A)=0.47, P(B)=0.47 and P(A|B)=0.42. Thus, the P(A∩B) is 0.0924.  

Q: Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and stand...

A: The normal distribution: A continuous random variable X is said to follow normal distribution with m...

Q: I. Using the interquartile range rule, does the data set contain any outliers ? If yes, give the out...

A: Given values, 100 97 96 90 83 81 75 75 70 70 52 26 Sample size =12 Mean= 76.25 Median= 78 Mode=70, 7...

Q: Identify the sampling method (simple random sampling, systematic sampling, convience, or stratified ...

A: In Simple Random Sampling, each member has an equal chance of being chosen.In Stratified sampling, t...

Q: The Question is attached, thanks for the help.

A: i) Given data Differentiating above

Q: The table summarizes results from pedestrian deaths that were caused by automobile accidents. Pedest...

A:  

Q: Describe how you would apple the five basic steps of a statistical study to the following issues.  Y...

A: Given that, The typical percentage of bill that is left as a tip in restaurants.

Q: If a sack contains eight blue marbles and ten red marbles, and you randomly select four, what is the...

A: The sack contains 8 blue and 10 red marbles.

Q: according to the department of cars ,trucks , and light duty trucks are driven on an average of abou...

A: It is given that the average number of miles driven per year is 12,000. The average consumed gallons...

Q: Thanks.

A: Given that X follows Binomial distribution with n=10 trails and p=1/4 or 1/2.   The probability mass...

Q: Question 10 Political Science, Inc. (PSI) specializes in voter polls and surveys designed to keep po...

A: Given: n= 500 and X= 220 The sample proportion can be calculated as:

Q: A&amp;B&amp;C&amp;D

A: Discrete Variable: It is a quantitative variable. It consists either a finite number of possible val...

Q: Let XX represent the full height of a certain species of tree. Assume that XX has a normal probabili...

A: According to the provided information, A) The probability that the height of a randomly selected tr...

Q: How large a sample should be selected to provide a 95% confidence interval with a margin of error of...

A: Population standard deviation, sigma is 50. The z-critical value for 95% confidence interval is 1.96...

Q: A patient visits her doctor with concerns about her blood pressure. If the systolic blood pressure e...

A: 1. The probability that a single measurement will fail to detect that the patient has high blood pre...

Q: 5. A. Draw a bell-shaped curve and label the axis with the 7 values including the mean of 500 in the...

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any ...

Q: A small dealership leased 21 Suburu Outbacks on 2-year leases. When the cars were returned at the en...

A: a). From the provided information, The sample size (n) = 21 The hypotheses can be constructed as: Nu...

Q: A company utilizes two different machines to manufacture parts of a certain type. During a single sh...

A: From the given information, there are two machines. From the given box plot, it is clear that there ...

Q: (a)  What is the level of significance? (Enter a number.) State the null and alternate hypotheses. W...

A: (a) The level of significance α is 0.10. The null and the alternate hypotheses are: H0­: µ=4.3 g H1:...

Q: A sample of 100 mortgages approved during the current year showed that 31 were issued to a single-ea...

A: The null and alternative hypotheses are given as follows:

Q: Assuming that you sample without replacement, select all possible samples of n = 2 and construct the...

A: The given population is {1,4,7}. Sample size is 2. Number of sample is 3C2=3. The samples are given ...

Q: (PUBLIC HEALTH) What is an example of a deterministic model of causality and  probabilistic (stochas...

A: Deterministic model:It is a mathematical model in which outcomes are decided by facts and formulas a...

Q: A new drug for pain relief is being tested within a given palliative care population. The new drug i...

A: Given data Score Sample Rank 1 Old Drug 1.5 3 Old Drug 5.5 3 Old Drug ...

Q: Consider the function given below:f(x) = kx2    0 &lt; x &lt; 2.13What must be the value k so that f...

A: The probability density function that characterizes the proportion X is given below: If f(x) said t...

Q: If raw scores ranging from 1 to 50 represented all the corresponding negative z-scores on the distri...

A: According to the provided data, the raw scores ranging from 1 to 50 represents all the corresponding...

Q: Manually compute the mean, median, mode, range, and standard deviation for the following data set. D...

A: Solution: Given that, 3; 14; 11; 5; 16; 17; 28; 41; 31; 18; 14; 14; 26; 25; 21; 22; 31; 2; 35; 44; 2...

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.