The writer is very fast, professional and responded to the review request fast also. Thank you.
Book/movie review
22/08/2022
Prompt B: The population has a mean of 5 and a standard deviation . A sample of 100 is
taken.
According to Prompt B, What is the standard deviation of the sampling distribution?
a) .014 b) .14 c) 14 d) 1.4Prompt B: The population has a mean of 5 and a standard deviation
. A sample of 100 is
taken.
According to Prompt B, What is the probability that your sample has a mean less than 4.9?
a) .7625 b) .8164 c) .2675 d) .1234
Given a normal distribution with a mean of 22 and standard deviation of 25, what is the
probability that x is greater than 34.3?
a) .0069
b) .3114 c) 0
d) .9931A hypothesis test is done in which the alternative hypothesis is that more than 10% of a population is left-handed. The p-value
for the test is calculated to be 0.25, so the researcher fails to reject the null hypothesis. Which statement is correct? a) We cannot conclude that more than 10% of the population is left-handed.
b) We can conclude that exactly 25% of the population is left-handed.
c) We can conclude that more than 25% of the population is left-handed.
d) We can conclude that more than 10% of the population is left-handed.Given a normal distribution with a mean of 22 and standard deviation of 5, what values represent the middle 95%?
a) 17, 27 b) 22
c) 8,37 d) 12, 32
DDT is an insecticide that accumulates up the food chain. Predator birds can be contaminated
with quite high levels of the chemical by eating many lightly contaminated prey. It is believed that
this causes eggshells to be thinner and weaker than normal and makes the eggs more prone to breakage. A studywas conducted of eggs laid by contaminated birds. A “normal” eggshell has a mean thickness of 0.2 mm, but the researchers wanted to investigate the claim that the eggshells were thinner than normal. What would be an appropriate null and alternative hypothesis?Decreasing the confidence level, while holding the sample size the same, will do what to the
length of your confidence interval?
a) cannot be determined from the given information b) make it smaller
c) make it bigger
d) it will stay the samePrompt C: A sample of 16 college students with part-time jobs were asked how much money they made in the past two months. The result was a mean of $645 with a standard deviation of $31. We will construct a 95% confidence interval for the mean using a T-distribution.
According to Prompt C, What is the critical value for this confidence interval?
a) 2.120 b) 2.602 c) 2.131 d) 1.96
Prompt C: A sample of 16 college students with part-time jobs were asked how much money they made in the past two months. The result was a mean of $645 with a standard deviation of $31. We will construct a 95% confidence interval for the mean using a T-distribution.
According to Prompt C, What is the margin of error for this confidence interval? a) $15.19
b) $31
c) $66.06 d) $16.52Prompt C: A sample of 16 college students with part-time jobs were asked how much money they made in the past two months. The result was a mean of $645 with a standard deviation of $31. We will construct a 95% confidence interval for the mean using a T-distribution.
According to Prompt C, What is the 95% confidence interval for the average amount of money earned in 2 months?
a) (321.7, 365.8) b) (531.2, 612.9) c) (876.2, 981.5) d) (628.5, 661.5)
Prompt E: Susie and Joan complain that they make very little money at their jobs; they are both radio announcers. The population of radio announcers averages $27,000 per year with a standard deviation of $5,300. Susie makes $25,000 per year and Joan makes $32,500.
According to Prompt E, what is the z-score for Joan’s salary?
a) .47
b) -.94
c) .94
d) -.47Prompt E: Susie and Joan complain that they make very little money at their jobs; they are both radio announcers. The population of radio announcers averages $27,000 per year with a standard deviation of $5,300. Susie makes $25,000 per year and Joan makes $32,500.
According to Prompt E, what salary corresponds with a z-score of 1.5?a) $22,200
b) $-19,550
c) $32,800
d) $35,450
Prompt E: Susie and Joan complain that they make very little money at their jobs; they are both radio announcers. The population of radio announcers averages $27,000 per year with a standard deviation of $5,300. Susie makes $25,000 per year and Joan makes $32,500.
According to Prompt E, What salary corresponds with 75th percentile?
a) $31,075
b) $22,800 c) $25,450 d) $32,800
True or False. The more samples you take the more your sampling distribution becomes more
normal centered around the true proportion/mean. a) True
b) Have a great summer
c) False
d) Stats is the best class ever
The writer is very fast, professional and responded to the review request fast also. Thank you.
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more