Facebook Friends Many people believe that the average number of Facebook friends is 140. The population standard deviation is 36.9. A random sample of 38 high school students in a particular county revealed that the average number of Facebook friends was 146. At α=0.01, is there sufficient evidence to conclude that the mean number of friends is greater than 140? Use the P-value method. Use a graphing calculator. Find the P-value. Round the answer to at least four decimal places. P-value=

Q: mber of calls made per day today is higher. He selects a random sample of 33 individuals who use a…

A: As the population standard deviation is known, we will use z test. The following null and…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: (a)   Determine the level of significance.   Significance level:    In order to decide how small the…

Q: yramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: An entrepreneur is considering the purchase of a coin-operated laundry. The current owner claims…

A: An entrepreneur is considering the purchase of a coin-operated laundry. The current owner claims…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A:

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A:

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: In order to determine whether the average length of a trout caught in Lake is less than 19 inches or…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: a) It is given that α =0.05.

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: Given that  The average length of trout caught in Pyramid lakes =19 inches  Sample size of fish…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A:

Q: Use the range rule of thumb to estimate the standard deviation. Round results to the nearest tenth.…

A: Range = Maximum - Minimum

Q: On the planet of Mercury, 4-year-olds average 3.2 hours a day unsupervised. Most of the unsupervised…

A: X follows a Normal distribution with mean = 3.2 and S.D = 1.6 Then z=(x-mean)/SD = (x-3.2)/1.6…

Q: A random sample of 77 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Given data,n=77x-=282μ=275σ=32α=0.14

Q: chickens. He records his harvest of eggs for 20 days. He finds that the average per day is 290 eggs…

A: Here use single sample t test

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: In order to determine whether average length of a trout caught in the lake is less than 19 inches or…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: Given that, Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for…

Q: Telephone Calls A researcher knew that before cell phones, a person made on average 2.8 calls per…

A:

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: Given that the average length of trout caught in pyramid lake is μ=19 inches. A survey reported that…

Q: random sample of 81 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Given: Sample size (n) = 81 Sample mean x¯=290 Hypothesized mean μ= 285 Population standard…

Q: Watching TV: The 2012 general Social Survey asked a large number of people how much time the spent…

A: Solution: State the hypotheses. f

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A:

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: given that

Q: Watching TV The 2012 general Social Survey asked a large number of people how much time they spent…

A: Given

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: To make conclusions about the population parameters, a statistical inference process is used such as…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A:

Q: random sample of 76 eighth grade​ students' scores on a national mathematics assessment test has a…

A:

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: We define ,  : Population mean of the length of trout caught in Pyramid Lake .  : Sample mean of the…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: Given: μ=19x¯=18.6s=3.1n=51

Q: the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout. Suppose a friend…

A: (a) The significance level is α=0.05. The null and alternative hypotheses: Ho: \muμ = 1919 Ha: \muμ…

Q: On the planet of Mercury, 4-year-olds average 3 hours a day unsupervised. Most of the unsupervised…

A: Note: Hi there! Thank you for posting the equation. As there are multiple sub parts, according to…

Q: A random sample of 85 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Solution: a. State the hypotheses. Null hypothesis: That is, the mean score for the state’s eighth…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: "Since you have posted a question with multiple sub-parts, we'll solve the first three sub-parts for…

Q: A random sample of 77 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Given information: μ=275, σ=32n=77, α=0.14x¯=282 a) Null hypothesis: H0 : μ=275  Alternative…

Q: Consider a value to be significantly low if its z score less than or equal to minus2 or consider a…

A:

Q: A random sample of 76 eighth grade​ students' scores on a national mathematics assessment test has a…

A: Given,sample size(n)=76sample mean(μ)=272standard deviation(σ)=36α=0.04

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: Given that mu = 19 , x bar = 18.6 , n = 51,alpha =0.05 , s =2.9 Carry out the hypothesis Do these…

Q: Arandom sample of 79 eighth grade students' scores on a national mathematics assessment test has a…

A: Given : sample size, n = 79 sample mean, x̄ = 272 population standard deviation,σ=…

Q: On the planet of Mercury, 4-year-olds average 3.2 hours a day unsupervised. Most of the unsupervised…

A:

Q: On the planet of Mercury, 4-year-olds average 3 hours a day unsupervised. Most of the unsupervised…

A: From the provided information, Mean (µ) = 3 hours Standard deviation (σ) = 1.4 hours Let X be a…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

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

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: We have given that  Sample size n= 51 , xbar= 18.6 , mu= 19  s= 3.1

Q: erage of $1570. A sample of 50 people shows an average of $1680 and a standard deviation is $180.…

A: a) The test hypotheses are: Null hypothesis: H0: μ = 1570. Alternative hypothesis: H1: μ ≠ 1570.

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: As per guideline expert have to answer first three subparts only.

Q: otherwise

A: Given: Mean, μ=3.2 Standard deviation, σ=1.7 N~μ, σN~3.2, 1.7 (c)  Percent of the children spend…

Q: On the planet of Mercury, 4-year-olds average 3 hours a day unsupervised. Most of the unsupervised…

A: a) the distribution of X is X ~ N(3,1.4)

Q: On the planet of Mercury, 4-year-olds average 3.2 hours a day unsupervised. Most of the unsupervised…

A:

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A:

Q: Telephone Calls A researcher knew that before cell phones, a person made on average 2.6 calls per…

A: Given Xbar=2.9 ,  Sigma=0.8, n=29,  mu=2.6

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

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