User Account

All Pages

Calculate the critical value

Assignment Help Basic Statistics
Reference no: EM131554929

To combat antibiotic resistance, the Quality Improvement Consortium recommends a throat swab to confirm strep throat before a physician prescribes antibiotics to children under age 5. In a random sample of 97 children who received antibiotics for throat infections, 29 did not have a throat swab. At α = 0.05, is this a statistically significant reduction over last year's national rate of 40 percent?

 

(a-1) Choose the correct null and alternative hypotheses.   H0: π ≤ 0.40 vs. H1: π > 0.40H0: π = 0.40 vs. H1: π ≠ 0.40H0: π ≥ 0.40 vs. H1: π < 0.40 

 

(a-2) Calculate the critical value. (A negative value should be indicated by a minus sign. Round your answer to 3 decimal places.)

 

Critical value

 

(a-3) Calculate the test statistic. (A negative value should be indicated by a minus sign. Round your answer to 2 decimal places.)

Test statistic

 

(a-4)Interpret the results. Fail to reject H0Reject H0 

 

(b) Is it safe to assume normality of the sample proportion p?   No, normality is not justified.Yes, normality is justified.

Reference no: EM131554929

Questions Cloud

A self-pay patient with no insurance is billed : When you provide the results of your analysis about the reduction in revenue problem to the CEO, what might you report?
What is the expected value of your coupon : There is a 50% chance that your coupon will be worth $10, a 40% chance that it will be worth $25, an 8% chance it will be worth $50 and a 2% chance.
Computer-based order entry system : Your firm is contemplating the purchase of new $617,942 computer-based order entry system. What is the NPV of this project if the discount rate is 10.4 percent?
Identify the risk associated with the endeavor-financial : identify the risk associated with the endeavor-financial or nonfinancial. Once the risks have been identified, management has a responsibility.
Calculate the critical value : Choose the correct null and alternative hypotheses. H0: p = 0.40 vs. H1: p > 0.40H0: p = 0.40 vs. H1: p ? 0.40H0: p = 0.40 vs. H1: p
How do you feel about this quote : How do you feel about this quote? Is attitude that important? Why would attitude be part of how you perform as an employee
State your hypotheses and decision rule : At the 5 percent level of significance, is the true mean smaller than the specification? Clearly state your hypotheses and decision rule.
Create a single slide colour coded concept map : Create a single slide colour coded concept map and 750 word explanation, demonstrating analysis of the case study scenario.
What approaches should included in a personal financial plan : What approaches should be included in a personal financial plan to address and minimize future risks with respect to these concerns?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Find the p value associated with the hypothesis test

Is there any evidence to suggest that the proportion of carpoolers crossing the George Washington Bridge is greater than the proportion of carpoolers using the Lincoln Tunnel? Use a = 0.01.

  For the following order from razon

b. Order from Zug is $1,840,000 as just calculated. The expected cost of offsetting the hedged cash flows is $100,000 as explained next. Brooks sold A$1 million forward. It will purchase them in the spot market and then will fulfill its forward co..

  Performing a one-tailed test

An automobile assembly line operation has a scheduled mean completion time, mean, of 14.7 minutes. The standard deviation of completion times is 1.2 minutes.

  Statistical data from pharmaceutical company

A pharmaceutical company conducted study to evaluate the effectiveness and safety of new inhaled form of insulin for treatment of diabetes. A group of 650 diabetics was given the drug twice a day, while another group of 650 diabetics was given an ..

  Expected value of number of cards need to produce first ace

Then turn up cards from the top until the first ace appears. What is the expected value of the number of cards required to produce the first ace?

  Give a 95 percent lower confidence interval

The PCB concentration of a fish caught in Lake Michigan was measured by a technique that is known to result in an error of measurement that is normally distributed with a standard deviation of .08 ppm (parts per million- Give a 95 percent conf..

  The maximum error of estimate is a function of three

the maximum error of estimate is a function of three factors the level of confidence sample size and standard

  Construct confidence interval for fraction of legal music

Construct a 95% confidence interval for the fraction of legal digital music.- Explain what this interval means. Do you believe that you can be this confident about your result? Why or why not?

  Explain the sampling distribution

Find the probability that 665 or fewer college students in the sample send and receive text messages with their phones? Is this result unusual?

  A survey asked business travelers if they worked harder on

a survey asked business travelers if they worked harder on a business trip. fifty percent of the respondents were

  Write null and alternative hypotheses about sex

Write null and alternative hypotheses about sex and the risk of a lower-extremity injury while playing interscholastic soccer.

  Briefly explain which factor have positive effect on savings

Are these factors (interest rate, expected inflation, and the ratio of household net worth/personal disposable income) important in determining personal saving rate? Briefly explain which factor (or factors) have positive effect on savings, and wh..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd