Question

In a recent Super Bowl, a TV network predicted that 47 % of the
audience would express an interest in seeing one of its forthcoming
television shows. The network ran commercials for these shows
during the Super Bowl. The day after the Super Bowl, and
Advertising Group sampled 103 people who saw the commercials and
found that 49 of them said they would watch one of the television
shows.

Suppose you are have the following null and alternative hypotheses
for a test you are running:

H0:p=0.47

Ha:p<0.47

Calculate the test statistic, rounded to 3 decimal places

z=

Answer #1

The null and alternative hypothesis are given as-

- Null hypothesis,
- Alternative hypothesis,

Now the information is given for the randomly selected people who saw the commercial and out of which 49 said that they would watch one of the television shows.

The formula for calculating the test statistic is given by-

where,

the null- hypothesized value for the population proportion p.

sample proportion, i.e.,

sample size

**Calculation of the test statistic:**

So the test statistic is calculated as

In a recent Super Bowl, a TV network predicted that 33 % of the
audience would express an interest in seeing one of its forthcoming
television shows. The network ran commercials for these shows
during the Super Bowl. The day after the Super Bowl, and
Advertising Group sampled 150 people who saw the commercials and
found that 42 of them said they would watch one of the television
shows.
Suppose you are have the following null and alternative hypotheses
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In a recent Super Bowl, a TV network predicted that 65 % of the
audience would express an interest in seeing one of its forthcoming
television shows. The network ran commercials for these shows
during the Super Bowl. The day after the Super Bowl, and
Advertising Group sampled 71 people who saw the commercials and
found that 48 of them said they would watch one of the television
shows.
Suppose you are have the following null and alternative hypotheses
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In a recent Super Bowl, a TV network predicted that 46 % of the
audience would express an interest in seeing one of its forthcoming
television shows. The network ran commercials for these shows
during the Super Bowl. The day after the Super Bowl, and
Advertising Group sampled 101 people who saw the commercials and
found that 41 of them said they would watch one of the television
shows.
Suppose you are have the following null and alternative
hypotheses for...

In a recent Super Bowl, a TV network predicted that 37% of the
audience would express an interest in seeing one of the forthcoming
television shows. The network ran commercials for these shows
during the Super Bowl. The day after the Super Bowl and Advertising
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Suppose you are have the following null and alternative
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A) In a recent Super Bowl, a TV network predicted that 38 % of
the audience would express an interest in seeing one of its
forthcoming television shows. The network ran commercials for these
shows during the Super Bowl. The day after the Super Bowl, and
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shows.
Suppose you are have the following null and alternative hypotheses...

1)
H0:p=0.54H0:p=0.54
H1:p<0.54H1:p<0.54
Your sample consists of 88 subjects, with 47 successes. Calculate
the test statistic, rounded to 2 decimal places
z=
2) A well-known brokerage firm executive claimed that
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I only need answers for number 4 & 5. (Just 2 numbers)
1.) The mean instant messaging bill is P32.79 per household. A
sample of 50 households showed a sample mean of P30.63. Use a
population standard deviation of σ=5.60.
Formulate hypothesis for a test to determine whether the sample
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What is the...

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